$ git clone -n https://src.fedoraproject.org/rpms/ghc-entropy.git /var/lib/mock/f31-build-93914-32448/root/thebuilddir/tmp/scmroot/ghc-entropy
Cloning into '/var/lib/mock/f31-build-93914-32448/root/thebuilddir/tmp/scmroot/ghc-entropy'...
$ git reset --hard 7acc0cd2b4c3738cff694cc98ec0bda4aa652133
HEAD is now at 7acc0cd BR prof for lib and static for executable