$ git clone -n https://src.fedoraproject.org/rpms/ghc-mwc-random.git /var/lib/mock/f31-build-100687-33299/root/chroot_tmpdir/scmroot/ghc-mwc-random
Cloning into '/var/lib/mock/f31-build-100687-33299/root/chroot_tmpdir/scmroot/ghc-mwc-random'...
$ git reset --hard 14a5e3a039cae15c1f4d43b272a4eb4f4ca4bd6d
HEAD is now at 14a5e3a BR prof for lib and static for executable