$ git clone -n https://src.fedoraproject.org/rpms/R-pbapply /var/lib/mock/f39-build-1588827-38229/root/chroot_tmpdir/scmroot/R-pbapply
Cloning into '/var/lib/mock/f39-build-1588827-38229/root/chroot_tmpdir/scmroot/R-pbapply'...
$ git fetch origin 9fa99f41504c0a42b092c7579cd594750b6a8d48:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-pbapply
 * [new ref]         9fa99f41504c0a42b092c7579cd594750b6a8d48 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9fa99f4 Update to 1.7-2