[MRG] fix grad sign sr(F)GW with KL loss by cedricvincentcuaz · Pull Request #611 · PythonOT/POT

Types of changes

Fix same issue than in PR #610 for sr(F)GW.

Motivation and context / Related issue

How has this been tested (if it applies)

PR checklist

  • I have read the CONTRIBUTING document.
  • The documentation is up-to-date with the changes I made (check build artifacts).
  • All tests passed, and additional code has been covered with new tests.
  • I have added the PR and Issue fix to the RELEASES.md file.