$ git clone -n https://src.fedoraproject.org/rpms/atomes.git /var/lib/mock/f42-build-side-1-3555900-46656/root/chroot_tmpdir/scmroot/atomes
Cloning into '/var/lib/mock/f42-build-side-1-3555900-46656/root/chroot_tmpdir/scmroot/atomes'...
$ git fetch origin 468dabce5fd18b465e696495c467ffbe2837f69c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/atomes
 * [new ref]         468dabce5fd18b465e696495c467ffbe2837f69c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 468dabc Bug corrections (see: https://github.com/Slookeur/atomes-GNU/releases/tag/v1.1.18)