msub-03

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

W3C sample	WIRIS
	$$V_{+}=V_{{+}_{\phantom{\mathrm{fail}}}}$$

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <msub>
    <mi>V</mi>
    <mo>+</mo>
  </msub>
  <mo>=</mo>
  <msub>
    <mi>V</mi>
    <mrow>
      <msub>
        <mo>+</mo>
        <mphantom>
          <mi mathvariant="normal">fail</mi>
        </mphantom>
      </msub>
    </mrow>
  </msub>
</math>

Author: George Chavchanidze, Opera Software ASA