subscribeToMore does not send the subscription query to the server

[karlito40]

Hi, i am experiencing a weird issue with the subscribeToMore functionality which won't send the subscription query to the server.

comment removed as i found the source of the problem

Actually this is a bug when you use vue-apollo inside vue-supply. As vue-apollo is share across component with vue-supply the subscribeToMore method will not work on some occasion.

The bug is easily reproductible. You have to make one supply with a subscribeToMore method from vue-apollo and then execute the query on two separate component. The second request will unsubscribe to all subscription ever use before on the same query. I'm not sure to be clear so i will provide a codesandbox soon.

[karlito40]

Fix done on #467