The MariaDB-supplied /usr/bin/mysql is linked against libedit, and has an unexpected binding for ctrl-W (deletes to start of line rather than just the previous word). This default has been changed upstream. However, libedit on RHEL 9 _also_ doesn't read ~/.editrc, so I'm unable to fix the binding locally. This appears to be a bug that was fixed in Fedora in BZ 1965671 and upstream in https://github.com/knz/go-libedit/issues/3#ref-commit-84b7963
Changing the default bindings at this time of RHEL9 is probably not acceptable, but the fix for reading $HOME/.editrc or $EDITRC looks good to me. The fix is in upstream libedit-20210522-3.1.
Created attachment 1972046 [details] Fix reading of editrc