$rightsWarningMessage = wfMessage( 'wikibase-shortcopyrightwarning',
wfMessage( 'wikibase-save' )->inContentLanguage()->text(), wfMessage( 'copyrightpage' )->inContentLanguage()->text(), "[$wgRightsUrl $wgRightsText]"
)->parse();
On item creation page wikibase-newentity-submit is used instead of wikibase-save, and not inContentLanguage.
Version: unspecified
Severity: minor