undomodule: disallow undoing "clear authorship colors"

Clearing the authorship colors of a document with at least two authors, and then
undoing that action caused a disconnect from the pad.
This change disallows undoing clearing authorship colors in order to prevent
the problem from affecting users, and adds the relative test coverage.

This is a change of behaviour, and is documented in the changelog.

Fixes #2802 (sidestepping it).
This commit is contained in:
John McLear 2020-04-07 00:39:43 +02:00 committed by muxator
parent ffc718e8c0
commit babf67175c
8 changed files with 90 additions and 4 deletions

View file

@ -154,7 +154,7 @@
"pad.userlist.guest": "Guest",
"pad.userlist.deny": "Deny",
"pad.userlist.approve": "Approve",
"pad.editbar.clearcolors": "Clear authorship colors on entire document?",
"pad.editbar.clearcolors": "Clear authorship colors on entire document? This cannot be undone",
"pad.impexp.importbutton": "Import Now",
"pad.impexp.importing": "Importing...",