$ git clone -n https://src.fedoraproject.org/rpms/kmouth.git /var/lib/mock/f45-build-15281-472/root/chroot_tmpdir/scmroot/kmouth
Cloning into '/var/lib/mock/f45-build-15281-472/root/chroot_tmpdir/scmroot/kmouth'...
$ git fetch origin a04fe0b2c4681c957badc258be6c3903f4583405:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kmouth
 * [new ref]         a04fe0b2c4681c957badc258be6c3903f4583405 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a04fe0b 26.08.1