Run the attached application.

Click button move (wait 2 seconds). Application will be moved to the corner. Coordinates reporting will be done correctly.
Move application somewhere (in the center of the scene).
Click button move again (wait 2 seconds). Coordinates will be reported wrongly:

Sample output:
root.localToScreen(root.getLayoutBounds()) = BoundingBox [minX:8.0, minY:30.0, minZ:0.0, width:284.0, height:202.0, depth:0.0, maxX:292.0, maxY:232.0, maxZ:0.0]
root.localToScreen(root.getLayoutBounds()) = BoundingBox [minX:782.0, minY:366.0, minZ:0.0, width:284.0, height:202.0, depth:0.0, maxX:1066.0, maxY:568.0, maxZ:0.0]

So, fx content reports its coordinates wrongly starting from the second time.

I've added waiting for 2 seconds, because interacting with application could restore correct coordinates

Affected tests:
ControlsAutomatedTestSuite/javafx/scene/control/test/fxcanvas/FXCanvasTest/resizingTest