$ "$TESTDIR/hghave" execbit || exit 80

  $ hg init

  $ echo a > a

  $ hg ci -Am'not executable'

  adding a

  $ chmod +x a

  $ hg ci -m'executable'

  $ hg id

  79abf14474dc tip

Make sure we notice the change of mode if the cached size == -1:

  $ hg rm a

  $ hg revert -r 0 a

  $ hg debugstate

  n   0         -1 unset               a

  $ hg status

  M a

  $ hg up 0

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

  $ hg id

  d69afc33ff8a

  $ test -x a && echo executable -- bad || echo not executable -- good

  not executable -- good