tests/test-rebase-newancestor.t

destroyed: keep the filecache in sync with __dict__ (issue3335) (issue3693) (issue3743)

We need to make sure that if X is in the filecache then it's also in the
filecache owner's __dict__, otherwise it will go out of sync:

repo.X                  # first access to X, records stat info in
                        # filecache and updates __dict__
repo._filecache.clear() # removes X from _filecache but it's still in __dict__
repo.invalidate()       # iterates over _filecache and removes entries
                        # from __dict__, but X isn't in _filecache, so
                        # it's kept in __dict__
repo.X                  # X is fetched from __dict__, bypassing the filecache

  $ cat >> $HGRCPATH <<EOF
  > [extensions]
  > graphlog=
  > rebase=
  > 
  > [alias]
  > tglog = log -G --template "{rev}: '{desc}' {branches}\n"
  > EOF

  $ hg init repo
  $ cd repo

  $ echo A > a
  $ echo >> a
  $ hg ci -Am A
  adding a

  $ echo B > a
  $ echo >> a
  $ hg ci -m B

  $ echo C > a
  $ echo >> a
  $ hg ci -m C

  $ hg up -q -C 0

  $ echo D >> a
  $ hg ci -Am AD
  created new head

  $ hg tglog
  @  3: 'AD'
  |
  | o  2: 'C'
  | |
  | o  1: 'B'
  |/
  o  0: 'A'
  
  $ hg rebase -s 1 -d 3
  merging a
  merging a
  saved backup bundle to $TESTTMP/repo/.hg/strip-backup/*-backup.hg (glob)

  $ hg tglog
  @  3: 'C'
  |
  o  2: 'B'
  |
  o  1: 'AD'
  |
  o  0: 'A'
  

  $ cd ..