values are REPLACING the values on the right instead of appending to them. #199
Description
If I choose a few values from the left and move them to the right, and then choose a few more values from the left and move them to the right, it REPLACES the values on the right instead of appending to them.
whats even weirder is if i click on one of the values on the right, and then click back on the left column, all of the correct values appear on the right side.