Avoid fixing parent slug in ``Page.set_parent`` if the page had no slug to start with.
Merge branch 'feature/double-parent-slug-fix' into develop
Replace the rating form with a message after user casts a vote.
Merge branch 'feature/rating-thanks' into develop
Merge branch 'feature/rating-thanks' into feature/polish-translation-update
Translated rating thanks string.
Merge branch 'feature/polish-translation-update' into develop