$ git clone -n https://src.fedoraproject.org/rpms/Atomes.git /var/lib/mock/f40-build-2692597-68227/root/chroot_tmpdir/scmroot/Atomes
Cloning into '/var/lib/mock/f40-build-2692597-68227/root/chroot_tmpdir/scmroot/Atomes'...
$ git fetch origin 4c33446d2194acc95ecec1acaddd3ace6674baaf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/Atomes
 * [new ref]         4c33446d2194acc95ecec1acaddd3ace6674baaf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4c33446 Added the README