$ git clone -n https://src.fedoraproject.org/rpms/knavalbattle.git /var/lib/mock/f39-build-1677008-40954/root/chroot_tmpdir/scmroot/knavalbattle
Cloning into '/var/lib/mock/f39-build-1677008-40954/root/chroot_tmpdir/scmroot/knavalbattle'...
$ git fetch origin d781803fec3ae8478d60bb4713749e92709c3a55:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/knavalbattle
 * [new ref]         d781803fec3ae8478d60bb4713749e92709c3a55 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d781803 23.08.2