Goldenlayout sets incorect vflex following ZK-4776

Steps to Reproduce

https://zkfiddle.org/sample/1j7do81/2-golden-layout

The area matrix is:

<attribute name="areas">
	A A B        
        A A B
      	A A B
        C C D
    </attribute>

Current Result

The A area receives vflex="2"

Expected Result

 the A area receives vflex="3"

Debug Information

 See comments

Workaround

Set Vflex directly on the the goldenpanel in ratios matching the intended result.