Flex advance datagrid and dash(-)

For one of my grid column , xml data is like

But on the grid , dash (-) gets converted into &#82开发者_JS百科11 character , like

What's best solution without any change in original data ?

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My best guess is to add a renderer to the column definition you want to modify then in the custom renderer just use a label or a text object if you need wrapping, I haven't seen that behavior before though, pretty strange.