Weird groups creation when first applied filter is a aggregated filter.

When Use Grouping is active for a view, if user select an aggregated filter like COUNT(Node:Nid) > 2 and then, apply a non aggregated filter like Node:Type = Page, AEF will create a two groups, Group 1, and Group 0 (in that order).

The expected behaviour should be, "only create one group called Group: 0"