grid view showing 2x the number of hosts in a cluster

[gnstriker]

For example:

I have a cluster of 2 nodes

In the main grid page, the www cluster will show 4 nodes

in the main cluster page, the correct number of nodes are displayed for this cluster.

I am currently using ganglia 3.6 but this was also occurring with 3.4 and 3.5 as well. This seemed to start happening when i started using hsflowd on my clients.