Hello, I wonder if someone could clarify when it is safe to use the index as the value for IChoiceRenderer#getIdValue. The documentation says that you can use the index if the list is stable. However I have a list that is sorted differently depending on the current locale and the user may change their locale at any time (the list is sorted in onBeforeRender). I tried using the index for getIdValue and it all seemed to work fine. If the user changed their locale the drop down list would update correctly. Is this safe to do? I would prefer to use the index if possible, since the real "primary key" would be quite long and would increase the size of the post data significantly.
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