Cannot read property documents of undefined

[wildhart]

Today I had an error TypeError: Cannot read property 'documents' of undefined at _getCache... from this code:

var collectionViews = isMeteor1_8 ? connectionData.collectionViews.get('users').documents.get(instance.userId) : connectionData.collectionViews.users.documents[instance.userId];

Using Meteor 1.8 and my PR #10