$ git clone -n https://src.fedoraproject.org/rpms/ghc-th-abstraction.git /var/lib/mock/f31-build-54994-28076/root/thebuilddir/tmp/scmroot/ghc-th-abstraction
Cloning into '/var/lib/mock/f31-build-54994-28076/root/thebuilddir/tmp/scmroot/ghc-th-abstraction'...
$ git reset --hard d257d3cf06fc1bbc31441217922f5559ccab0395
HEAD is now at d257d3c update to 0.2.10.0