localrepo: forcibly copy list of filecache keys On Python 3, keys() is more like iterkeys(), so we got in trouble for mutating the dict while we're iterating here. Since the list of caches should be relatively small, work around this difference by just forcing a copy of the key list.

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  $ hg init

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  $ echo This is file a1 > a

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  $ hg add a

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  $ hg commit -m "commit #0"

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  $ ls

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  a

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  $ echo This is file b1 > b

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  $ hg add b

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  $ hg commit -m "commit #1"

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  $ hg co 0

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  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

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B should disappear

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  $ ls

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  a