GridPaneDesignInfo.getCellBounds() returns wrong value for the attached FXML file:
it reports height==0 for all the cells ; however cells all have a non null height.

To reproduce:
1) Unzip and open the DTL5564 NB project
2) Adjust path of jfxrt.jar, javafx-designtime.jar, javafx-beans-dt.jar
3) Run
     -> a window pops up and displays Chirac.fxml content
     -> the tab "Børn" is preselected
4) Click on "Print cells bounds of #bornSamvaersGirdPane"
     -> cell bounds are printed on standard output
     -> all the heights are zero
     -> however, looking at snapshot.png, cell heights are visibly not zero

I use the following FX build:

Product: javafx-2.2.40ea
Platform: macosx-universal
Build-Number: 35