The 'mwReference' static name property of ve.dm.MWReference class is used in related classes as hardcoded value as seen in https://codesearch.wmflabs.org/extensions/?q=mwReference&i=nope&files=&repos=
This makes subclassing of ve.dm.MWReferenceNode with a different name difficult. The associated inspectors stop working, and the code breaks in number of places. Example: https://phabricator.wikimedia.org/T203160#4738735