The English Wikipedia has raised some [[ https://en.wikipedia.org/wiki/Wikipedia:Village_pump_(proposals)#Turn_off_extended_edit_summaries | concerns ]] about the new edit summary lengths ([[ https://en.wikipedia.org/wiki/Special:Permalink/828375917#Turn_off_extended_edit_summaries | permalink ]]). There are some cases where the full edit summary length was accidentally used, and this is cluttering the revision history ([[ https://en.wikipedia.org/w/index.php?title=Wikipedia_talk:Criteria_for_speedy_deletion&diff=828335644&oldid=828335481 | example ]]). Additionally, there are worries it could be intentionally misused, possibly as a venue for discussion during edit wars, for instance.
A possible solution is to truncate the display only within the interface, and not the storage (props to @Legoktm for the idea!). A clickable/hoverable ellipsis "..." or something similar would reveal the full summary. This way everybody wins -- we can take full advantage of the longer edit summaries, and abuse and visual distraction will be minimized.