I had an Auto Layout, then I put an instance of scrollbar inside. I gave that scrollbar absolute position, top & bottom, right constraints.
I deleted it then undo. I thought it should keep the same constraints befor deleting but no, it resets to top, left.
This does not happen for objects which is not an instance (for example a rectangle) and also does not happen in a regular frame which is not an Auto Layout.
Please fix this.