Event editing: checkbox for date span does not stay checked
Summary
When re-editing an event with date span, the corresponding checkbox is not checked.
Steps to reproduce
Create An Event with a date span. Edit that existing event.
What is the current bug behavior?
The date span checkbox is not checked; the end date is hidden.
What is the expected correct behavior?
The checkbox should be checked if a date span was selected before. The end date should then be visible of course.
Relevant error messages and/or screenshots
none
Possible fixes
Change the UI behavior.