index items count is incorrect for partitioned index

I loaded 20k items in bucket default and created a partitioned index with 2 index service nodes.

create index idx1 on default(age) partition by HASH(meta().id)

1. On Index UI page, the "items" in summary show as 20k for both nodes. Expected result is 10k each node.

2. The graphs also show "Indexed Items" as 20k for each node.
However, on the original stats graphs, it correctly show as 10k.