$ git clone -n https://src.fedoraproject.org/rpms/graphene.git /var/lib/mock/f45-build-12991-444/root/chroot_tmpdir/scmroot/graphene
Cloning into '/var/lib/mock/f45-build-12991-444/root/chroot_tmpdir/scmroot/graphene'...
$ git fetch origin a9e4ccd8b129552713d1bef29b79c388158c58c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/graphene
 * [new ref]         a9e4ccd8b129552713d1bef29b79c388158c58c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9e4ccd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild