msup-07

Formatting of right hand side of equation should be identical to formatting of left hand side

W3C sample	WIRIS
	$$a^2=a^{\stackrel{\phantom{x}}{2}}$$

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <msup>
    <mi>a</mi>
    <mn>2</mn>
  </msup>
  <mo>=</mo>
  <msup>
    <mi>a</mi>
    <mrow>
      <mover>
        <mn>2</mn>
        <mphantom>
          <mi>x</mi>
        </mphantom>
      </mover>
    </mrow>
  </msup>
</math>

Author: George Chavchanidze, Opera Software ASA