Steps to reproduce:
1. Create a new task(not an assigned task).
2. Fill some fields of this task but leave the "summary" field empty.
3. Save this task.

Actual result:
The confimation popup says "Adding a meaningful summary to your task will give your recipients an idea of what your task is about.", whereas there are no recipients here.
Also the two buttons on this popup are "Cancel" and "Send"

Expected result:
The confirmation popup should ask if the task should be saved without a summary?
Also the buttons on the popup sould be "Cancel" and "Save".