Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  b39e9bb519e1a0d5ec1c2166cc4a117dae35cf2e

Refactor ChangeOps class

The constructor parameter is new.

And I tried to decrease complexity and increase readability.

Change-Id: I4e5e86a482409dc9ca53fb9cb6d0cf4c9209e626