QuickDesigner: C'n'P on navigator evaluates JS before pasting

Steps to reproduce:

• create a simple QML file or use the attached one
• open the file inside the Quick Designer, switch to the integrated editor to see what happens
• select the unnamed Rectangle inside the navigator
• trigger copy (using keyboard or context menu)
• select the outer most (named) Rectangle
• trigger paste (using keyboard or context menu)

Current result:

• not sure.. but it feels like that the x and y properties content get (wrongly) evaluated before pasting it

Expected result:

• paste what is copied

Note: This seems to happen on the navigator only - when triggering only copy on the navigator and paste on the editor everything is fine..