$ git clone -n https://src.fedoraproject.org/rpms/R-fortunes.git /var/lib/mock/f45-build-6098-346/root/chroot_tmpdir/scmroot/R-fortunes
Cloning into '/var/lib/mock/f45-build-6098-346/root/chroot_tmpdir/scmroot/R-fortunes'...
$ git fetch origin 1425f1361bbb5e765c9ceab6760cdb5211c04230:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-fortunes
 * [new ref]         1425f1361bbb5e765c9ceab6760cdb5211c04230 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1425f13 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild