$ git clone -n https://src.fedoraproject.org/rpms/ghc-optional-args.git /var/lib/mock/f31-build-116753-34579/root/chroot_tmpdir/scmroot/ghc-optional-args
Cloning into '/var/lib/mock/f31-build-116753-34579/root/chroot_tmpdir/scmroot/ghc-optional-args'...
$ git reset --hard c3f9c346d0c461ea0784b8b3da6650cbfd952561
HEAD is now at c3f9c34 BR prof for lib and static for executable