Strange behavior from entity focus/inspect tool/window

[nmschulte]

From #3061:

However, I did notice some funky behavior when using the "focus"/"inspect" tool; I managed to get things into a state such that, if the code above hid the object, Cesium would render some other fixed representation (like, it had cached one of the states and would always show that). I can make a new bug report with a video of this if you like.

I'm not entirely sure the intended behavior of this tool, but whatever is going on here definite seems wrong. It always happens when I run this code. The strange select behavior seems to be because of the added code (that changes the material and visibility); I tried wrapping it in a setTimeout, but it doesn't look like that worked for the video capture.

focus.bug.hevc.mkv.zip