[BUG] yank-pop is broken in 21.4
Tested with 21.4.3 and 21.1.14
In 21.4.3 it is required to press M-y (yank-pop) twice to get same
effect as in 21.1.14 with just pressing M-y once.
With xemacs-21.1.14 -vanilla
---Clip---
Recent keystrokes:
a a a C-a C-k b b b C-a C-k C-y M-y C-h l
---Clip---
With xemacs-21.4.3 -vanilla
---Clip---
Recent keystrokes:
a a a C-a C-k b b b C-a C-k C-y M-y M-y C-h l
---Clip---
After above keystrokes there is text 'aaa' visible,
but 21.4.3 required pressing M-y twice.
Aki