960   $ rm subdir/unknown

   961   $ hg status

   962 

   963 Removing a node from the dirstate resets the cache for its parent directory

   964 

   965   $ hg forget subdir/a

   966   $ hg debugdirstate --dirs --no-dates | grep '^d'

   967   d   0          0 set                 subdir

   968   $ hg ci -qm '#1'

   969   $ hg debugdirstate --dirs --no-dates | grep '^d'

   970   d   0          0 unset               subdir

   971   $ hg status

   972   ? subdir/a

   973