overdot wrong in OOXML output

[opoudjis]

Reported in metanorma/metanorma-ieee#418

[asciimath]
++++
dot Theta ne ddot Theta
++++

renders correctly in MathML:

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mstyle displaystyle="true">
    <mover>
      <mo>Θ</mo>
      <mo>.</mo>
    </mover>
    <mo>≠</mo>
    <mover accent="true">
      <mo>Θ</mo>
      <mo>..</mo>
    </mover>
  </mstyle>
</math>

It renders incorrectly in OOXML:

<m:oMath>
    <m:limUpp>
<m:limUppPr><m:ctrlPr><w:rPr><w:rFonts w:ascii="Cambria Math" w:hAnsi="Cambria Math"></w:rFonts><w:i></w:i></w:rPr></m:ctrlPr></m:limUppPr>
<m:e><m:r><m:t>.</m:t></m:r></m:e><m:lim><m:r><m:t>&#x398;</m:t></m:r></m:lim>
</m:limUpp>
<m:r><m:t>&#x2260;</m:t></m:r>
<m:limUpp>
<m:limUppPr><m:ctrlPr><w:rPr><w:rFonts w:ascii="Cambria Math" w:hAnsi="Cambria Math"></w:rFonts><w:i></w:i></w:rPr></m:ctrlPr></m:limUppPr>
<m:e><m:r><m:t>&#x398;</m:t></m:r></m:e><m:lim><m:r><m:t>..</m:t></m:r></m:lim></m:limUpp>
  </m:oMath>

It seems that in the case of dot Theta, the OOXML is putting the dot and the theta (Θ) the wrong way around:

<m:e><m:r><m:t>.</m:t></m:r></m:e><m:lim><m:r><m:t>&#x398;</m:t></m:r></m:lim>

the Word rendering of ddot Theta is correct:

<m:e><m:r><m:t>&#x398;</m:t></m:r></m:e><m:lim><m:r><m:t>..</m:t></m:r></m:lim>

[suleman-uzair]

@opoudjis I'm looking into it.