Is it possible to logically combine dynamic properties in a Qt Stylesheet?

[Bebe]

I would like to have logical AND comparison using dynamic properties, but can't figure out the syntax, or if it is even possible.
Lets say I want to do something special to a QPushButton if it has both an icon and text. I know how/when to set the peoperties but can't figure out the stylesheet syntax.

First I set these separate cases fine:

MyButton[hasIcon="true"] {background-color: pink;}
MyButton[hasText="true"] {background-color: blue;}

MyButton[hasIcon="true"] {background-color: pink;}
MyButton[hasText="true"] {background-color: blue;}

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But none of these will set the background to green:

MyButton[hasIcon="true"] MyButton[hasText="true"] {background-color: green;}
MyButton[hasIcon="true"],[hasText="true"]              {background-color: green;}
MyButton[hasIcon="true"][hasText="true"]               {background-color: green;}

MyButton[hasIcon="true"] MyButton[hasText="true"] {background-color: green;}
MyButton[hasIcon="true"],[hasText="true"]              {background-color: green;}
MyButton[hasIcon="true"][hasText="true"]               {background-color: green;}

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If it isn't possible could someone please let me know so I can stop chasing my tail?