*Steps to reproduce:*
# Create and open an *empty project*
# *Click on any color value* to bring up the color pop-up window (you can use the directional light game object)
# *Edit the color* and change it to blue using the pop-up window's color picker
# Perform *undo twice*
# Perform {*}redo twice{*}{*}{*}

*Actual results:* The color pop-up window still shows the old value

*Expected results:* The color pop-up window updates to represent the current value, in this case, blue

*Reproducible with versions:*
6000.0.57f1
6000.2.3f1
6000.3.0b
6000.4.0a1

*Tested on (OS):* MacOS