$ git clone -n https://src.fedoraproject.org/rpms/ghc-regexpr.git /var/lib/mock/f31-build-54788-28055/root/chroot_tmpdir/scmroot/ghc-regexpr
Cloning into '/var/lib/mock/f31-build-54788-28055/root/chroot_tmpdir/scmroot/ghc-regexpr'...
$ git reset --hard 9a350f65399144a7ef0f0edd82ab4d01d615941c
HEAD is now at 9a350f6 refresh to cabal-rpm-0.13