shell client control sequences not working (xterm, kde konsole)

I recently updated to version 10.0.14 from 10.0.11 (using the openSUSE database build service) and in 10.0.14, the shell client no longer accepts control sequences like control+r (search in history) or control+left/right (move cursor one word to the left/right). In case of control+r nothing happens, pressing control+left/right prints ';5D' / ';5C' instead of moving the cursor.

Control sequences work fine in 10.0.11. Also, after downgrading to 10.0.11 and using the up key to browser through the command history spaces are replaced by \040 for commands entered in the 10.0.14 shell client.

This happens in both KDE's konsole and plain xterm using BASH as shell (I haven't tested other terminals).

I have libreadline version 6.2 installed (libreadline6-6.2-68.12.1.x86_64), not sure if this is relevant or what else to report.