$ git clone -n https://src.fedoraproject.org/rpms/ghc-system-filepath.git /var/lib/mock/f31-build-54851-28065/root/chroot_tmpdir/scmroot/ghc-system-filepath
Cloning into '/var/lib/mock/f31-build-54851-28065/root/chroot_tmpdir/scmroot/ghc-system-filepath'...
$ git reset --hard 8ece686656e749b734333fc1b56fcd132db0010a
HEAD is now at 8ece686 refresh to cabal-rpm-0.13