$ git clone -n https://src.fedoraproject.org/rpms/R-spelling.git /var/lib/mock/f45-build-6433-348/root/chroot_tmpdir/scmroot/R-spelling
Cloning into '/var/lib/mock/f45-build-6433-348/root/chroot_tmpdir/scmroot/R-spelling'...
$ git fetch origin 7d0364677d6ad071df483504c16ed3be821be8c4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-spelling
 * [new ref]         7d0364677d6ad071df483504c16ed3be821be8c4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7d03646 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild