Allow manually setting done dates through task modal [when the 'add done date' setting is disabled]

[n-konig]

⚠️ Please check that this feature request hasn't been suggested before.

• I searched previous Ideas in Discussions didn't find any similar feature requests.
• I searched previous Issues didn't find any similar feature requests.
• I am only requesting a single feature. Multiple changes should be split into individual requests, with links between them.
• I believe my requested feature will be generally applicable to other users, not just me: it is not uniquely tied to my personal workflow.

🔖 Feature description

Currently, if the option "Set done date on every completed task" is disabled, manually setting a done date in the task modal is not saved to the task.

Not all tasks need a completion date. But some do.

The feature requested is to allow the modal to save values to the Task regardless of the setting to automatically add these or not.

✔️ Solution

With option to "Set done date on every completed task" disable, the following should be allowed:

Taking the following steps:

1. Open task modal
2. Set status to "done"
3. Set a done date

Should set the status to "done" and writ the done date to the task.

❓ Alternatives

No response

📝 Additional Context

No response

[claremacrae]

This arose out of #2859.

[claremacrae]

Currently, if the option "Set done date on every completed task" is disabled, manually setting a done date in the task modal is not saved to the task.

This is actually not 100% true.

It turns out that when "Set done date on every completed task" is disabled:

• If the Task is DONE when it is opened in the modal, then a manually added Done date is saved.
• It is only when the Task is changed to DONE whilst the modal is open that a manually added Done date is not saved.

This is why I was asking for more complete reproduction steps in #2859.

So the above information provides a workaround for the time being.