Updated mediawiki/extensions
Project: mediawiki/extensions/VisualEditor  6a81acb44a8720290bac076f7ae864e00a5e9b18

Always deep copy when writing to and reading from the fake clipboard

Otherwise, changes to deeply nested structures like template blobs or
references will leak from the data model into the clipboard data.

Change-Id: I85d8d311f676d45856f30b3747e7383c70c95460