$ git clone -n https://src.fedoraproject.org/rpms/wmbusmeters.git /var/lib/mock/f39-build-1532005-36220/root/chroot_tmpdir/scmroot/wmbusmeters
Cloning into '/var/lib/mock/f39-build-1532005-36220/root/chroot_tmpdir/scmroot/wmbusmeters'...
$ git fetch origin a2bfc72fbd20a6ad92666e8636b4434251eae6d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wmbusmeters
 * [new ref]         a2bfc72fbd20a6ad92666e8636b4434251eae6d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a2bfc72 Update to 1.14.0 (rhbz#2219146)