$ git clone -n https://src.fedoraproject.org/rpms/meterbridge.git /var/lib/mock/f41-build-750976-13388/root/chroot_tmpdir/scmroot/meterbridge
Cloning into '/var/lib/mock/f41-build-750976-13388/root/chroot_tmpdir/scmroot/meterbridge'...
$ git fetch origin 321c58134397f8a400b56cc6f1e995ebedc34d8e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/meterbridge
 * [new ref]         321c58134397f8a400b56cc6f1e995ebedc34d8e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 321c581 Eliminate use of obsolete %patchN syntax (#2283636)