$ git clone -n https://src.fedoraproject.org/rpms/ucx.git /var/lib/mock/f40-build-771305-125947/root/chroot_tmpdir/scmroot/ucx
Cloning into '/var/lib/mock/f40-build-771305-125947/root/chroot_tmpdir/scmroot/ucx'...
$ git fetch origin a41409146d37e05e66ef3ed99c20c3f8afd2b089:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ucx
 * [new ref]         a41409146d37e05e66ef3ed99c20c3f8afd2b089 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a414091 Update sources file for 1.15.0