$ git clone -n https://src.fedoraproject.org/rpms/snobol4.git /var/lib/mock/f45-build-36206-702/root/chroot_tmpdir/scmroot/snobol4
Cloning into '/var/lib/mock/f45-build-36206-702/root/chroot_tmpdir/scmroot/snobol4'...
$ git fetch origin 27ea51d50d5f81b1fd2da93a3f216dedcfdaff16:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/snobol4
 * [new ref]         27ea51d50d5f81b1fd2da93a3f216dedcfdaff16 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 27ea51d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild