apollo-client: QueryObservable `currentResult` behavior seems to be buggy

QueryObservable returned from client.subscribe seems to assign the immediate query result (from APOLLO_QUERY_RESULT to lastResult and returns an empty object from currentResult immediately following.

This seems to break react-apollo here.

This bug appears to express itself only in areas of our app where we are rendering a list server-side and then clicking a link on that list to navigate to a “more details” view for the list item.

• If I set ssr to false for the list view, the bug does not occur.
• If the user navigates to the list and the data is fetched from the client, this bug doesn’t present itself.
• If I click the back button from the details view and select the same, or a different, list item the bug doesn’t present itself a second time without a browser refresh.

It seems to be some sort of bug with state somewhere in either apollo-client or react-apollo. The bug causes the details view to remain in “loading state” forever because the query result is never passed into the view via @graphql#props callback even when loading becomes false and the query result has been digested into redux.

Screenshots

Query result during breakpoints

QueryObservable#lastResult contains the query result and QueryResult#currentResult() returns an empty object

props callback in @graphql does not contain user