mfenced should be equivalent to its expanded form
<mo fence="true"> opening-fence </mo>
<mo separator="true"> sep#1 </mo>
<mo separator="true"> sep#(n-1) </mo>
<mo fence="true"> closing-fence </mo>
However, the spacing for mfenced is
- .1em before and after the fences
- 0em/.25em before/after the separators
while the spacing for mo is
- .1em before and after the operator when it is the first or last child of an mrow
- .2em otherwise.
Bug 115787 should solve that issue.
This will be fixed by bug 115787.
*** This bug has been marked as a duplicate of bug 115787 ***