324     def _show(self, ctx, copies, props):

   324     def _show(self, ctx, copies, props):

   325         '''show a single changeset or file revision'''

   325         '''show a single changeset or file revision'''

   326         fm = self._fm

   326         fm = self._fm

   327         fm.startitem()

   327         fm.startitem()

   328 

   328 

   329         # TODO: maybe this should be wdirrev/wdirnode?

   330         # TODO: maybe this should be wdirrev/wdirnode?

   330         rev = ctx.rev()

   331         rev = ctx.rev()

   331         if rev is None:

   332         if rev is None:

   332             hexnode = None

   333             hexnode = None

   333         else:

   334         else: