In the very first calendar interface there are two different search fields directly next to each other. While the function of the right one is clearly to find an event which is registered in the calendar, the function of the left one is unclear, since all the other options underneath it (but the option "calendar") are locked. What can you search for in this field?
Steps to reproduce:
1. search for an already registered entry in the search field directly above the calendar.
2. the entry will appear.
3. search for the same (or for "Calendar") in the left search field.
4. neither of them will appear, not even "Calendar" which is listed underneath the searchfield.
there are no findings when you search in the left search field, independently for what you search.
there is any kind of feedback what you can search for, or at least the categories listed underneath the search fields appear as results.