Updated mediawiki/extensions
Project: mediawiki/extensions/Math  6a519421c482620be9679fdc1ca480e106b4da80

Bug 41677: Protect against tex nodes wrapped in tex nodes.

This gracefully handles: <span class="tex"><span class="tex"
dir="ltr">$ x^2 $</span></span>, generated when you put math tags
inside element attributes.

Change-Id: I997fc5e87b320879c99f7560fb023876ab6ef573