How do I go about fixing Polish translations?

I find some Polish translations (in particular, MediaWiki:Revreview-accuracy/pl) inadequate or inconsistent (MediaWiki:Revreview-depth-0/pl versus MediaWiki:Revreview-style-0/pl). Can I just fix them here or should I do anything special first? Editing them in a test wiki first does not seem to be an option; you need to have administrator rights to edit interface messages there.

Just fix them here, especially if you're sure that the editors at your wiki will think that your corrections are OK.