$ git clone -n https://src.fedoraproject.org/rpms/jaaa.git /var/lib/mock/f29-build-5383-1283/root/thebuilddir/tmp/scmroot/jaaa
Cloning into '/var/lib/mock/f29-build-5383-1283/root/thebuilddir/tmp/scmroot/jaaa'...
$ git reset --hard db5f54ce3849087f330cf9200eec51d59c2efb38
HEAD is now at db5f54c require gcc, gcc-c++ for building