Rather than adding a comment in that the edit of a page in LexiconWikiStorage that it was automated via that class, allow for user to set a comment about why they made the change.

Fall back on automated comments in case of no summary set by user, e.g. "Changed transcription IPA for 'tomten' (land) from 't o M t e n' -> 't o M t é n'"

This requires a new input field in Special:EditLexicon and a new parameter to create, update and delete of LexiconStorage interface (and implementing classes).