This is related to Shortcut to open the due date on a task doesn't put the cursor in the text box.
I requested that an issue be fixed regarding the cursor not being in the text box when the shortcut to open the due date is used. That was fixed but now I noticed that, pressing control + a to select the date and then typing over the date, removing the recurring schedule. I can understand why it is happening (it appears as though I am deleting the date, so the recurring schedule should disappear) but I don’t think it should work that way. Thoughts?