$ git clone -n https://src.fedoraproject.org/rpms/rtl-wmbus.git /var/lib/mock/f45-build-34751-691/root/chroot_tmpdir/scmroot/rtl-wmbus
Cloning into '/var/lib/mock/f45-build-34751-691/root/chroot_tmpdir/scmroot/rtl-wmbus'...
$ git fetch origin f511a2574b868c81025c38b2fd8294087b99db18:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rtl-wmbus
 * [new ref]         f511a2574b868c81025c38b2fd8294087b99db18 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f511a25 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild