$ git clone -n https://src.fedoraproject.org/rpms/rpy.git /var/lib/mock/f45-build-54787-937/root/chroot_tmpdir/scmroot/rpy
Cloning into '/var/lib/mock/f45-build-54787-937/root/chroot_tmpdir/scmroot/rpy'...
$ git fetch origin 4e90f031bf36518463cb7ccee16a55e080804d42:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpy
 * [new ref]         4e90f031bf36518463cb7ccee16a55e080804d42 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4e90f03 Rebuilt for Python 3.15.0b4 ABI change