$ git clone -n https://src.fedoraproject.org/rpms/kshisen.git /var/lib/mock/f38-build-727897-100939/root/chroot_tmpdir/scmroot/kshisen
Cloning into '/var/lib/mock/f38-build-727897-100939/root/chroot_tmpdir/scmroot/kshisen'...
$ git fetch origin 0c52d7e0d089bb5a5a3b8e3821030d4d6afea16b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kshisen
 * [new ref]         0c52d7e0d089bb5a5a3b8e3821030d4d6afea16b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0c52d7e 23.04.2