Add reference to RT for the fix from d0cefd99
Upgrade the "too many args on customcond" warning from 1adbd3f to an exception
Ensure collapse is respected regardless of selection type

Switch the attribute name/logic (passthrough on explicit presence only)
Tighten even more inflate_result() invocations, for crazy overloads
Fix set_column on non-native (+columns) selections (RT#86685)