tree 44a56b8925ab0e88bc1559e22ca86dd9e63b8972
parent 9536edfcc6826d42e99bdb24c1d501bd50a21f1a
author Benno Schulenberg <bensberg@justemail.net> 1465912912 +0200
committer Benno Schulenberg <bensberg@justemail.net> 1465914869 +0200

undo: start renumbering from the head of the paste, not from its tail

Because when undoing a paste at the end of the buffer, the tail line
probably does not exist any more.

This fixes https://savannah.gnu.org/bugs/?48222.

(It would have been the proper fix for
https://savannah.gnu.org/bugs/?44488.)