$ git clone -n https://src.fedoraproject.org/rpms/R-gee.git /var/lib/mock/f45-build-6132-346/root/chroot_tmpdir/scmroot/R-gee
Cloning into '/var/lib/mock/f45-build-6132-346/root/chroot_tmpdir/scmroot/R-gee'...
$ git fetch origin d24190cfb6019e9e96e85f4b85c8079159a44058:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-gee
 * [new ref]         d24190cfb6019e9e96e85f4b85c8079159a44058 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d24190c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild