$ git clone -n https://src.fedoraproject.org/rpms/ghc-regex-posix.git /var/lib/mock/f31-build-54786-28055/root/chroot_tmpdir/scmroot/ghc-regex-posix
Cloning into '/var/lib/mock/f31-build-54786-28055/root/chroot_tmpdir/scmroot/ghc-regex-posix'...
$ git reset --hard addd7132a71e085e3b9ef90d2e66639e41f01459
HEAD is now at addd713 refresh to cabal-rpm-0.13