$ git clone -n https://src.fedoraproject.org/rpms/oz.git /var/lib/mock/f40-build-2618323-64505/root/chroot_tmpdir/scmroot/oz
Cloning into '/var/lib/mock/f40-build-2618323-64505/root/chroot_tmpdir/scmroot/oz'...
$ git fetch origin c68f640443108590f7046abe28cc0de7b136efbf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/oz
 * [new ref]         c68f640443108590f7046abe28cc0de7b136efbf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c68f640 Bump with no changes to exceed F39 infra repo build NVR