$ git clone -n https://src.fedoraproject.org/rpms/wmbusmeters.git /var/lib/mock/f40-build-2647880-66734/root/chroot_tmpdir/scmroot/wmbusmeters
Cloning into '/var/lib/mock/f40-build-2647880-66734/root/chroot_tmpdir/scmroot/wmbusmeters'...
$ git fetch origin 60b997c86da90d56af12e974c3b4d2c74ca3e9d0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/wmbusmeters
 * [new ref]         60b997c86da90d56af12e974c3b4d2c74ca3e9d0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 60b997c Update to 1.16.1 (rhbz#2264357)