$ git clone -n https://src.fedoraproject.org/rpms/celt051.git /var/lib/mock/f29-build-1206-488/root/thebuilddir/tmp/scmroot/celt051
Cloning into '/var/lib/mock/f29-build-1206-488/root/thebuilddir/tmp/scmroot/celt051'...
$ git reset --hard cc5c8e4a0e5b9f678442713ab0f1402fd7750362
HEAD is now at cc5c8e4 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild