3.1.x - Unable to edit previously poplulated RTE field as empty

I’m wondering if anyone else is experiencing this problem with editing RTE fields in EE3?

Specifically, once an entry has been saved to an RTE field, the field will hold on to that copy if you try to delete the copy in it and won’t let you save it blank.

For example:

I save an entry with an RTE field containing some copy.

Later when I edit the entry, emptying out the copy in that field and leaving it blank, but when I submit the entry and open it again, the original value remains.

I can edit the copy and the edit is saved so long as there is copy still in the field, but if I try to edit the field and submit it empty, whatever the value was when I first opened the entry for editing remains.

The field is not required and I don’t get any error messages – I just can’t submit a new, blank value.

I’m first experienced this on an 3.1.2 but it’s still an issue after updating to 3.1.3.

Attaching a screenshot of the field settings.

Also, it seems like this was an issue for another user way back on 2.6 but that post didn’t yield any info. https://ellislab.com/forums/viewthread/238041/