[FIX] calendars: do not badly display the width of an event that was wrongly be set with the same start and end
[FIX] calendars: do not badly display the width of an event that was wrongly be set with the same start and end

git-svn-id: a7fabbc6a7c54ea5c67cbd16bd322330fd10cc35@19607 b456876b-0849-0410-b77d-98878d47e9d5

tikiorg/tiki,oregional/tiki,changi67/tiki,oregional/tiki,tikiorg/tiki,changi67/tiki,changi67/tiki,oregional/tiki,changi67/tiki,tikiorg/tiki,tikiorg/tiki,oregional/tiki,changi67/tiki