$ git clone -n https://src.fedoraproject.org/rpms/ghc-math-functions.git /var/lib/mock/f31-build-100480-33264/root/thebuilddir/tmp/scmroot/ghc-math-functions
Cloning into '/var/lib/mock/f31-build-100480-33264/root/thebuilddir/tmp/scmroot/ghc-math-functions'...
$ git reset --hard 75350612a299423326983613a62378399ffb3cef
HEAD is now at 7535061 BR prof for lib and static for executable