$ git clone -n https://src.fedoraproject.org/rpms/kmouth.git /var/lib/mock/f39-build-1540502-36475/root/chroot_tmpdir/scmroot/kmouth
Cloning into '/var/lib/mock/f39-build-1540502-36475/root/chroot_tmpdir/scmroot/kmouth'...
$ git fetch origin 9b3f6ea0113933983fc88aaaf7989aa5bd2321ce:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmouth
 * [new ref]         9b3f6ea0113933983fc88aaaf7989aa5bd2321ce -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9b3f6ea 23.08.2