$ git clone -n https://src.fedoraproject.org/rpms/rpmlint.git /var/lib/mock/f42-build-side-1-3500279-45970/root/chroot_tmpdir/scmroot/rpmlint
Cloning into '/var/lib/mock/f42-build-side-1-3500279-45970/root/chroot_tmpdir/scmroot/rpmlint'...
$ git fetch origin 58d289047506ae2cbed03541318a4585e53c7d33:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rpmlint
 * [new ref]         58d289047506ae2cbed03541318a4585e53c7d33 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 58d2890 2.7.0