this isn't bound to the Vue instance inside beforeRouteUpdate hook

[decademoon]

Version

2.4.0

Reproduction link

http://jsfiddle.net/df4Lnuw6/143/

Steps to reproduce

• Create a route with a child.
• Navigate to the child route with a query parameter. The browser must be at this route initially.
• In the created hook for the root component, replace the route without the query parameter.
• The beforeRouteUpdate hook gets called for the child component with this either undefined or equal to the window object.

What is expected?

this should be equal to the Vue instance.

What is actually happening?

this is undefined (as is the case for my webpack build) or equal to the window object (in the fiddle).