$ git clone -n https://src.fedoraproject.org/rpms/cerbere.git /var/lib/mock/f29-build-1909-609/root/thebuilddir/tmp/scmroot/cerbere
Cloning into '/var/lib/mock/f29-build-1909-609/root/thebuilddir/tmp/scmroot/cerbere'...
$ git reset --hard dfb1c91fe2843fb476768481e2ebb73ff3cd144f
HEAD is now at dfb1c91 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild