After upgrading to 21.04.3, tab completion only works for a single nick in the channel. Downgrading back to 20.12.3 restores it working.
Bug remains in 21.08.3...
Looks like the "case sensitive" option is backward
A possibly relevant merge request was started @ https://invent.kde.org/network/konversation/-/merge_requests/66
A possibly relevant merge request was started @ https://invent.kde.org/network/konversation/-/merge_requests/67
Git commit 68d4efb0e9dbcf1fa22c7975d92164a2f991256b by Heiko Becker, on behalf of Luke Dashjr. Committed on 18/12/2021 at 22:11. Pushed by kossebau into branch 'release/21.12'. Bugfix: Correct behaviour of "case sensitive" tab completion option Fixes regression from 5dfb6583. M +1 -1 src/irc/channel.cpp https://invent.kde.org/network/konversation/commit/68d4efb0e9dbcf1fa22c7975d92164a2f991256b