When using %(year)d, the counter is not automatically reset on a new year:
https://cs.wikipedia.org/w/index.php?title=Diskuse_s_wikipedistou:JAn_Dud%C3%ADk&diff=16916546&oldid=16916479&diffmode=source
See also, other related changes that were made recently: https://gerrit.wikimedia.org/r/q/project:pywikibot/core+status:merged+after:2020-07-27+topic:archivebot