Applying regions filter to delegates before it has loaded causes incorrect display of a region's delegates

[dunkOnIT]

The following image is produced by "[switching] from all regions to USA and Canada while it was still loading"

@danieljames-dj you may want to look into this when you have a moment?

[danieljames-dj]

Thanks @dunkOnIT. This is a really nice edge case. I'll keep this in my todo list. I'll comment here before starting. But before me commenting, if anybody wants to pick this up, feel free to do so.