repoview: make propertycache.setcache compatible with repoview Propertycache used standard attribute assignment. In the repoview case, this assignment was forwarded to the unfiltered repo. This result in: (1) unfiltered repo got a potentially wrong cache value, (2) repoview never reused the cached value. This patch replaces the standard attribute assignment by an assignment to `objc.__dict__` which will bypass the `repoview.__setattr__`. This will not affects other `propertycache` users and it is actually closer to the semantic we need. The interaction of `propertycache` and `repoview` are now tested in a python test file.

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#!/usr/bin/python

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from mercurial.ui import ui

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from mercurial.localrepo import localrepository

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from mercurial.commands import add, commit, status

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u = ui()

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print '% creating repo'

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repo = localrepository(u, '.', create=True)

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f = open('test.py', 'w')

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try:

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    f.write('foo\n')

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finally:

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    f.close

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print '% add and commit'

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add(u, repo, 'test.py')

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commit(u, repo, message='*')

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status(u, repo, clean=True)

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print '% change'

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f = open('test.py', 'w')

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try:

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    f.write('bar\n')

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finally:

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    f.close()

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# this would return clean instead of changed before the fix

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status(u, repo, clean=True, modified=True)