$ git clone -n https://src.fedoraproject.org/rpms/im-chooser.git /var/lib/mock/f40-build-790615-136628/root/chroot_tmpdir/scmroot/im-chooser
Cloning into '/var/lib/mock/f40-build-790615-136628/root/chroot_tmpdir/scmroot/im-chooser'...
$ git fetch origin 51c81a8004a3212869f7353fc7c89ed5beca7ac6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/im-chooser
 * [new ref]         51c81a8004a3212869f7353fc7c89ed5beca7ac6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 51c81a8 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild