Adding a conditional loses unsaved operator choice(s).

From #2326757: Conditionals Broken - Select option determines displayed fields

SIDE NOTE: I also noticed that while creating conditions, if, before I select "Save conditions", I select the "+" and create a If foo is empty then hide bar condition, then select "+" to add another condition, the "Is empty" portion will change to "is" every time, without fail. If I select "Save conditions" between the addition of each "Is empty" condition, this does not happen. This also seems to occur when I drag and drop the condition to adjust it's weight, before selecting "Save conditions".

This is consistently reproduced. It may be related to other issues against conditional definition, but I've created this separate issue because it is easily reproduced. When fixed, we can investigate whether it helps other issues.

EDIT: The issue is broader and easier to reproduce. Create a conditional using a select component with any operator. Save. Then edit the operator to a different one and click (+) to add a new conditional. The change you made to the first conditional's operator will be lost.