Updated mediawiki/extensions
Project: mediawiki/extensions/Math  47a6bd2073f81cad6d59c92d428203271d63c26e

Fix rerendering in VE

this.$element is no longer a wrapper, so use .filter instead
of .find. Don't use domElements argument as this has already
been written to this.$element at this stage (will remove this
argument in VE core).

Change-Id: If24580102201e2b83b57c63d85335bd728a28784