$ git clone -n https://src.fedoraproject.org/rpms/glue-schema.git /var/lib/mock/f45-build-11317-429/root/chroot_tmpdir/scmroot/glue-schema
Cloning into '/var/lib/mock/f45-build-11317-429/root/chroot_tmpdir/scmroot/glue-schema'...
$ git fetch origin fa47e5c761192cf8fa9b8da00a4391fabd4d741d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/glue-schema
 * [new ref]         fa47e5c761192cf8fa9b8da00a4391fabd4d741d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fa47e5c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild