Comment 16 for bug 1765304

You are right about the macro including new versions, that at least explains why it makes a difference.

Then that patch was dropped 3 years ago in Debian and in fedora:
https://src.fedoraproject.org/cgit/rpms/ibus.git/tree/ibus.spec#n715

It's unclear why it would need to be restored now. It looks like an upstream issue that needs proper debugging/resolving