$ git clone -n https://src.fedoraproject.org/rpms/tang.git /var/lib/mock/f29-build-6254-1526/root/thebuilddir/tmp/scmroot/tang
Cloning into '/var/lib/mock/f29-build-6254-1526/root/thebuilddir/tmp/scmroot/tang'...
$ git reset --hard 55d78bdbf2fb51434e85b99d975348d6f7d219b5
HEAD is now at 55d78bd - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild