Construction Tool is Taking materials from all circuits since 1.5

Since patch 1.5 my construction tool (across all bases) will now take materials from all circuits when crafting placeables. It used to be that only circuit 1 (or whichever circuit was set as the outgoing circuit on the sub-fief console) was used. This allowed me to maintain a stockpile of materials that would stay full and "safe". Now there's no way of knowing which chest the tool will use to grab materials from. Fabricators are still safe since they have configurable circuits, but the construction tool does not.

I have alreasy submitted an in game bug report, with no response yet. I have checked forums, Discord, and game settings, and have found no mention of this change anywhere. I'm not sure this should be considered a bug since things are working fine. I would just like to have it confirmed that this is an intended change, in which case I will find a way to adapt.

A clue that something is off is that the suggested cost of a placeable in the menu infocard has the amount of materials in circuit 1 listed in parantheses, while the actual placement menu lists available materials from all circuits.