Sleek fails to remove the word "Date" from the todo field after user fixes an invalid date

[andrei-a-papou]

Steps to reproduce

1. create a new todo
2. tab through to the due date field
3. enter an invalid date
4. sleek puts due:Invalid Date in the todo field
5. tab back to the due date field and fix the date

Actual result

The word Date remains in the todo field

Expected result

The word Date should be cleared from the todo field

Attached GIF