778             # We know which changelog entry we are coming from

   778             # We know which changelog entry we are coming from

   779             toprev = self._changectx.rev()

   779             toprev = self._changectx.rev()

   780 

   780 

   781         if toprev is not None:

   781         if toprev is not None:

   782             return self._adjustlinkrev(toprev, inclusive=True)

   782             return self._adjustlinkrev(toprev, inclusive=True)

   783         else:

   788         else:

   784             return self.linkrev()

   789             return self.linkrev()

   785 

   790 

   786     def introfilectx(self):

   791     def introfilectx(self):

   787         """Return filectx having identical contents, but pointing to the

   792         """Return filectx having identical contents, but pointing to the