$ git clone -n https://src.fedoraproject.org/rpms/R-hms.git /var/lib/mock/f38-build-side-42-init-devel-1006660-29377/root/chroot_tmpdir/scmroot/R-hms
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1006660-29377/root/chroot_tmpdir/scmroot/R-hms'...
$ git fetch origin 29db35814cc864d9daf26aec427f5fc2ab417d57:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-hms
 * [new ref]         29db35814cc864d9daf26aec427f5fc2ab417d57 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 29db358 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild