### Please describe the problem.
git-annex cannot build with feed 1.0.0.0, which was uploaded to Hackage on Sat Aug 26 23:56:18 UTC 2017 by AdamBergmark.

### What steps will reproduce the problem?
Try to build git-annex with cabal install in a cabal sandbox.

### What version of git-annex are you using? On what operating system?
6.20170818

### Please provide any additional information below.

[[!format sh """
[416 of 562] Compiling Command.ImportFeed ( Command/ImportFeed.hs, dist/dist-sandbox-b4eb11e/build/git-annex/git-annex-tmp/Command/ImportFeed.o )

Command/ImportFeed.hs:139:61: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: URLString
        Actual type: Text.Atom.Feed.URI
    • In the first argument of ‘Enclosure’, namely ‘enclosureurl’
      In the second argument of ‘($)’, namely ‘Enclosure enclosureurl’
      In the second argument of ‘($)’, namely
        ‘ToDownload f u i $ Enclosure enclosureurl’

Command/ImportFeed.hs:142:49: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: URLString
        Actual type: Data.Text.Internal.Text
    • In the first argument of ‘quviSupported’, namely ‘link’
      In the first argument of ‘ifM’, namely ‘(quviSupported link)’
      In the expression:
        ifM
          (quviSupported link)
          (return $ Just $ ToDownload f u i $ QuviLink link, return Nothing)

Command/ImportFeed.hs:143:71: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: URLString
        Actual type: Data.Text.Internal.Text
    • In the first argument of ‘QuviLink’, namely ‘link’
      In the second argument of ‘($)’, namely ‘QuviLink link’
      In the second argument of ‘($)’, namely
        ‘ToDownload f u i $ QuviLink link’

Command/ImportFeed.hs:214:54: error:
    • Couldn't match type ‘[Char]’ with ‘Data.Text.Internal.Text’
      Expected type: S.Set Data.Text.Internal.Text
        Actual type: S.Set ItemId
    • In the second argument of ‘S.member’, namely ‘(knownitems cache)’
      In the expression: S.member itemid (knownitems cache)
      In a case alternative:
          Just (_, itemid) -> S.member itemid (knownitems cache)

Command/ImportFeed.hs:279:42: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe [Char]
        Actual type: Maybe Text.RSS.Syntax.DateString
    • In the second argument of ‘(<$>)’, namely
        ‘getItemPublishDateString itm’
      In the expression: replace "/" "-" <$> getItemPublishDateString itm
      In a case alternative:
          _ -> replace "/" "-" <$> getItemPublishDateString itm

Command/ImportFeed.hs:293:44: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: String
        Actual type: Data.Text.Internal.Text
    • In the first argument of ‘toMetaValue’, namely ‘itemid’
      In the second argument of ‘($)’, namely ‘toMetaValue itemid’
      In the second argument of ‘M.singleton’, namely
        ‘(S.singleton $ toMetaValue itemid)’

Command/ImportFeed.hs:299:26: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: feedtitle
      In the expression: [feedtitle]
      In the expression: ("feedtitle", [feedtitle])

Command/ImportFeed.hs:300:26: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: itemtitle
      In the expression: [itemtitle]
      In the expression: ("itemtitle", [itemtitle])

Command/ImportFeed.hs:301:27: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: feedauthor
      In the expression: [feedauthor]
      In the expression: ("feedauthor", [feedauthor])

Command/ImportFeed.hs:302:27: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: itemauthor
      In the expression: [itemauthor]
      In the expression: ("itemauthor", [itemauthor])

Command/ImportFeed.hs:303:28: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: getItemSummary $ item i
      In the expression: [getItemSummary $ item i]
      In the expression: ("itemsummary", [getItemSummary $ item i])

Command/ImportFeed.hs:304:32: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: getItemDescription $ item i
      In the expression: [getItemDescription $ item i]
      In the expression:
        ("itemdescription", [getItemDescription $ item i])

Command/ImportFeed.hs:305:27: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: getItemRights $ item i
      In the expression: [getItemRights $ item i]
      In the expression: ("itemrights", [getItemRights $ item i])

Command/ImportFeed.hs:306:23: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: snd <$> getItemId (item i)
      In the expression: [snd <$> getItemId (item i)]
      In the expression: ("itemid", [snd <$> getItemId (item i)])

Command/ImportFeed.hs:307:22: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: itemtitle
      In the expression: [itemtitle, feedtitle]
      In the expression: ("title", [itemtitle, feedtitle])

Command/ImportFeed.hs:307:33: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: feedtitle
      In the expression: [itemtitle, feedtitle]
      In the expression: ("title", [itemtitle, feedtitle])

Command/ImportFeed.hs:308:23: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: itemauthor
      In the expression: [itemauthor, feedauthor]
      In the expression: ("author", [itemauthor, feedauthor])

Command/ImportFeed.hs:308:35: error:
    • Couldn't match type ‘Data.Text.Internal.Text’ with ‘[Char]’
      Expected type: Maybe String
        Actual type: Maybe Data.Text.Internal.Text
    • In the expression: feedauthor
      In the expression: [itemauthor, feedauthor]
      In the expression: ("author", [itemauthor, feedauthor])
cabal: Leaving directory '.'
cabal: Error: some packages failed to install:
git-annex-6.20170818-ATXJn9dQzZj9avYQidLOBq failed during the building phase.
The exception was:
ExitFailure 1
"""]]

Full build log is here:
https://gist.githubusercontent.com/anonymous/dcc8d9823bd50b7fca10d5cf8961e75d/raw/c6500526bbad0a94e067816b1af2c9e8717a3419/08.cabal

### Have you had any luck using git-annex before? (Sometimes we get tired of reading bug reports all day and a lil' positive end note does wonders)
Yes!

> I fixed this last week, in [[!commit ee2f096e3ba3aea24445ff2093b426b68e000cc2]]. [[done]]
