#2768 child in the groupbox cannot resize correctly

[matthewcheng]

To resize the browser, the grid won't resize correctly

<window title="Hello World!!" border="normal" width="100%" height="400px">
<groupbox>
<caption label="test" />
<separator/>
<grid >
<columns>
<column>test1</column>
<column>test2</column>
<column>test3</column>
<column>test4</column>
<column>test5</column>
<column>test6</column>
<column>test7</column>
<column>test8</column>
<column>test9</column>
<column>test10</column>
</columns>
</grid>
</groupbox>
</window>

[Jumper Chen]

Fixed since 2011/07/11.
Note that you have to specify the hflex='1' to Groupbox as well.