$ git clone -n https://src.fedoraproject.org/rpms/pentaho-reporting-flow-engine.git /var/lib/mock/f45-build-21534-586/root/chroot_tmpdir/scmroot/pentaho-reporting-flow-engine
Cloning into '/var/lib/mock/f45-build-21534-586/root/chroot_tmpdir/scmroot/pentaho-reporting-flow-engine'...
$ git fetch origin d82b08f0410904aad6d37d2c0e435fc308d0a288:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pentaho-reporting-flow-engine
 * [new ref]         d82b08f0410904aad6d37d2c0e435fc308d0a288 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d82b08f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild