$ git clone -n https://src.fedoraproject.org/rpms/kf6-kguiaddons.git /var/lib/mock/f40-build-1643716-24171/root/chroot_tmpdir/scmroot/kf6-kguiaddons
Cloning into '/var/lib/mock/f40-build-1643716-24171/root/chroot_tmpdir/scmroot/kf6-kguiaddons'...
$ git fetch origin a45408dfc1f406997be78d2dba65f5564565e070:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kguiaddons
 * [new ref]         a45408dfc1f406997be78d2dba65f5564565e070 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a45408d Merge branch 'rawhide' into f40