$ git clone -n https://src.fedoraproject.org/rpms/ghc-url.git /var/lib/mock/f31-build-55037-28083/root/chroot_tmpdir/scmroot/ghc-url
Cloning into '/var/lib/mock/f31-build-55037-28083/root/chroot_tmpdir/scmroot/ghc-url'...
$ git reset --hard 8be41bae770dfb85d08cbad0f2b9adf293f00807
HEAD is now at 8be41ba refresh to cabal-rpm-0.13