ContentSizeFitter locks Rect size until scene reloaded!

If you have a simple Text object on a canvas and add a ContentSizeFitter to it then when you choose Preferred Size it will lock the width/height of the Rect Transform as expected, but when you then change to Unconstrained or even delete the CSF component those elements remain locked!!
You seem to have to reload the scene to fix it!

known bug? 2018.2.1f1

 

A similar bug has already been posted here (and I believe logged) for layout groups causing the same lock.

 

Ah I see - in fact anything that drives a RectTransform's values will cause those values to be locked, even when said object is removed from it, until scene reload.
What a lovely bug introduced to 2018!!

case #1069465

 

Indeed, one more lovely bug. I wish updating a project in Unity would not be as painful as this every time... They should slow down on the features and work a bit more on stability.

Anyway, is there an issue already open or should we open one? Can't find it, thanks.

 

Here is one:
https://issuetracker.unity3d.com/is...ayoutgroup-component-from-a-parent-gameobject