$ git clone -n https://src.fedoraproject.org/rpms/tachyon.git /var/lib/mock/f31-build-54695-28036/root/thebuilddir/tmp/scmroot/tachyon
Cloning into '/var/lib/mock/f31-build-54695-28036/root/thebuilddir/tmp/scmroot/tachyon'...
$ git reset --hard 63b086c3a7a60172ddd9a610bdd1d823f1a592f5
HEAD is now at 63b086c - Rebuilt for https://fedoraproject.org/wiki/Fedora_30_Mass_Rebuild