Subject: bug#54374: 29.0.50; previous-completion fails at beginning of completions buffer

From: Juri Linkov <[email-masked]>
Date: Thu, 26 May 2022 19:26:41 +0300

forcemerge 54374 55289 55430
quit

> Here is the patch that fixes 4 bugs: 2 bugs described above,
> and also bug#55289 and bug#55430.

I pushed the test suite that will help to verify that these bugs
are correctly fixed.