• prevent browser from caching images/files, fixes #2378
• after removing last promoted attribute, create a blank one, fixes #2388
• fix for "Today page does not work for 2021-11-20", closes #2359
• fix hidden notes appearing in note map, closes #2403
• full text search should look into link URLs as well, closes #2412
• trigger note revisioning saving also on title changes #2426