$ git clone -n https://src.fedoraproject.org/rpms/mrpt.git /var/lib/mock/f38-build-side-42-init-devel-1075324-29805/root/chroot_tmpdir/scmroot/mrpt
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1075324-29805/root/chroot_tmpdir/scmroot/mrpt'...
$ git fetch origin 1ac89fd6366ba98b6467fac4ee8c1fa4541db561:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mrpt
 * [new ref]         1ac89fd6366ba98b6467fac4ee8c1fa4541db561 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ac89fd Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild