$ git clone -n https://src.fedoraproject.org/rpms/ghc-MonadCatchIO-mtl.git /var/lib/mock/f31-build-115533-34504/root/chroot_tmpdir/scmroot/ghc-MonadCatchIO-mtl
Cloning into '/var/lib/mock/f31-build-115533-34504/root/chroot_tmpdir/scmroot/ghc-MonadCatchIO-mtl'...
$ git reset --hard c3509939d2d47593b3ad3759a934fee12cbb0aaa
HEAD is now at c350993 BR prof for lib and static for executable