Correcting a minor issue with the tagcloud.  The onDatasetChange handler was explicitly clearing tag filters and relying on that side effect of that method to query for new tag data.  This caused all other visualizations to render twice as it issued an extraneous filter change event directly after a dataset change event.  The database selector already handles clearing all filters whenever a new dataset is selected.
Correcting a minor issue with the tagcloud.  The onDatasetChange handler was explicitly clearing tag filters and relying on that side effect of that method to query for new tag data.  This caused all other visualizations to render twice as it issued an extraneous filter change event directly after a dataset change event.  The database selector already handles clearing all filters whenever a new dataset is selected.

NextCenturyCorporation/neon-gtd,NextCenturyCorporation/neon-gtd,NextCenturyCorporation/neon-gtd