$ git clone -n https://src.fedoraproject.org/rpms/atomes.git /var/lib/mock/f41-build-side-1-2903217-34680/root/chroot_tmpdir/scmroot/atomes
Cloning into '/var/lib/mock/f41-build-side-1-2903217-34680/root/chroot_tmpdir/scmroot/atomes'...
$ git fetch origin f19bdcbb8398597c0a278c1f47be5ebaa736ce85:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/atomes
 * [new ref]         f19bdcbb8398597c0a278c1f47be5ebaa736ce85 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f19bdcb Package spec file update