$ git clone -n https://src.fedoraproject.org/rpms/wimlib.git /var/lib/mock/f40-build-796445-140692/root/chroot_tmpdir/scmroot/wimlib
Cloning into '/var/lib/mock/f40-build-796445-140692/root/chroot_tmpdir/scmroot/wimlib'...
$ git fetch origin e8b07a5e8cf6cd02ee5288643b8411fe96447942:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wimlib
 * [new ref]         e8b07a5e8cf6cd02ee5288643b8411fe96447942 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8b07a5 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild