$ git clone -n https://src.fedoraproject.org/rpms/R-abind.git /var/lib/mock/f45-build-6066-346/root/chroot_tmpdir/scmroot/R-abind
Cloning into '/var/lib/mock/f45-build-6066-346/root/chroot_tmpdir/scmroot/R-abind'...
$ git fetch origin 7319ec4584a67ff405be79c50816bf706df34b6b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-abind
 * [new ref]         7319ec4584a67ff405be79c50816bf706df34b6b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7319ec4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild