$ git clone -n https://src.fedoraproject.org/rpms/ghc-STMonadTrans.git /var/lib/mock/f31-build-99362-33152/root/chroot_tmpdir/scmroot/ghc-STMonadTrans
Cloning into '/var/lib/mock/f31-build-99362-33152/root/chroot_tmpdir/scmroot/ghc-STMonadTrans'...
$ git reset --hard d29b66052d8b0867ef789859337d3d09aad251b5
HEAD is now at d29b660 BR prof for lib and static for executable