Prevent deletion of used categories!
For me another, not unimportant, suggest.
It would be good if the deletion of used categories could be prevented.
At this time, categories easily can be deleted, although they are used for tasks.
If someone will delete a category which is still used, for example a notice could be displayed.
So you would not unconsciously delete the category of existing tasks.
Another question would be, what happens if you will confirm deleting after seen this message.
The category will be deleted and then all affected tasks have no more categories …....
Or it could be run a query to assign the affected tasks to another category before the selected category will be deleted.
THX :)