$ git clone -n https://src.fedoraproject.org/rpms/kf5-messagelib.git /var/lib/mock/f38-build-side-42-init-devel-677266-26692/root/chroot_tmpdir/scmroot/kf5-messagelib
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-677266-26692/root/chroot_tmpdir/scmroot/kf5-messagelib'...
$ git fetch origin ca6b9fb20d07bbbf374a90590cbecda42fac3981:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-messagelib
 * [new ref]         ca6b9fb20d07bbbf374a90590cbecda42fac3981 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca6b9fb feat: 22.12.3