$ git clone -n https://src.fedoraproject.org/rpms/libjingle.git /var/lib/mock/f29-build-5418-1289/root/thebuilddir/tmp/scmroot/libjingle
Cloning into '/var/lib/mock/f29-build-5418-1289/root/thebuilddir/tmp/scmroot/libjingle'...
$ git reset --hard 1d30e64ab9ea82695d67f4e297db88aa044289b3
HEAD is now at 1d30e64 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild