0.9.5-rc2: Cluster : get wrong result when add new node and query through this node with aggregation function.

[CrazyJvm]

reproduce steps:

1、start a single node and insert some data
2、add new node to join the first node(in my case, i joined 2 nodes)
3、execute query on the old node with agg func , e.g. select max(value) from xxx groupby time(1m)
4、execute query on new node with the same sql above

you will see the results showed from two nodes are different, result from old node is correct which show a lot of rows according to grouyby interval, result from new node, however, is just a single line.

we've already fixed and will send a PR asap.