Updated mediawiki/extensions
Project: mediawiki/extensions/VisualEditor  a55ca0a0c3671b8b65374c5b11d4bb9f14470969

Only listen for copy/paste on documentNode and pasteTarget

As these are the only places we want to override the events.

Bug: 54375
Change-Id: I8a4e207f38508cdaf35cd869f267dd9f1059c83d