Updated mediawiki/extensions
Project: mediawiki/extensions/Parsoid  c1405b574416a7b9dda1df321f795c848caf9702

Bug 57707: Hotfix, don't push undefined onto wikitext array

This might have been broken in 283bfd55, but this patch just works around the
breakage for now by not pushing undefined onto the wikitext array. Proper
investigation and fix to be done.

Change-Id: Ic1706c8da69c0046b1acd39f1e8b3de55a3fee92