$ git clone -n https://src.fedoraproject.org/rpms/R-viridisLite.git /var/lib/mock/f45-build-6512-349/root/chroot_tmpdir/scmroot/R-viridisLite
Cloning into '/var/lib/mock/f45-build-6512-349/root/chroot_tmpdir/scmroot/R-viridisLite'...
$ git fetch origin 5ecbda3eb96edad2b769cd9d276de6e733d572ec:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-viridisLite
 * [new ref]         5ecbda3eb96edad2b769cd9d276de6e733d572ec -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ecbda3 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild