When I receive an updated invitation, the "When" line is displayed like this: When: <font color="#ff0000">13.04.17 11:00 - 12:00</font> (<strike>13.04.17 10:00 - 11:00</strike> I would expect that the html formatting is being used and not displayed as plain text.
Git commit caddff13dc84556054acc92e93bf6baa69ac3b1a by Montel Laurent. Committed on 12/04/2017 at 14:23. Pushed by mlaurent into branch 'Applications/17.04'. Fix Bug 378692 - calendar message escapes HTML instead using formatting FIXED-IN: 5.5.0 M +3 -3 src/templates/itip_event.html https://commits.kde.org/kcalutils/caddff13dc84556054acc92e93bf6baa69ac3b1a