eKoeS/symphony-2 — comment on commit 26149e87ffc194bde8bc1fdcd5061703e21bdde7
File: symphony/content/content.blueprintsdatasources.php line 544
By brendo:

Not sure, @allen told me about it awhile back.

The entire parameters stack is evaluated when checking the requirements in exactly the same way as filtering. The only difference is checking for existence, instead evaluating for value.