When is too long summary (eg. revert of edit from IPv6 address with some summary) I got (not localised) message "Your edit summary is too long." - red frame about summary field and non-clickable save button
But when I delete part of this summary, I am not able to save page, I must give preview ant then I can save
Version: unspecified
Severity: major
Whiteboard: aklapper-moreinfo