651         metadata_cache[filerev] = False

   651         metadata_cache[filerev] = False

   652         return False

   652         return False

   653 

   653 

   654     p1, p2 = parent_revs()

   654     p1, p2 = parent_revs()

   655     if p1 == nullrev or p2 != nullrev:

   655     if p1 == nullrev or p2 != nullrev:

   656         return False

   657         return False

   657 

   658 

   658     delta_parent = delta_base()

   659     delta_parent = delta_base()

   659     parent_has_metadata = metadata_cache.get(delta_parent)

   660     parent_has_metadata = metadata_cache.get(delta_parent)

   660     if parent_has_metadata is None:

   661     if parent_has_metadata is None: