$ git clone -n https://src.fedoraproject.org/rpms/quassel.git /var/lib/mock/f39-build-1540564-36475/root/chroot_tmpdir/scmroot/quassel
Cloning into '/var/lib/mock/f39-build-1540564-36475/root/chroot_tmpdir/scmroot/quassel'...
$ git fetch origin ef55ef191d5f8b9af8d1db9926bb8cffb10de8e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/quassel
 * [new ref]         ef55ef191d5f8b9af8d1db9926bb8cffb10de8e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ef55ef1 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild