[0.8.5] Linked storage logistics is always disabled

Issue description

Patch notes for 0.8.5 say

• Logistics is automatically disabled on the linked side while the station is loading or unloading it, preventing trucks from "stealing" reserved cargo or space from trains.

However logistics are disabled even if the station the storage is linked to is sitting idle - no arrivals, station unit is full and the linked storage is full too. When hovered over export setting the tooltip says "unlink train station to re-enable"

Reproduction steps

1. Build a storage attached to a train station
2. Try to change logistics settings on the storage building

Expected: logistics settings can be changed on the storage building
Actual: changing setting has no effect even if station is not loading/unloading from the storage

Game version and build number

0.8.5

Operating system

Linux

Attachments

Here's a scenario that is broken now. I have a bunch of mini factories around the island. Each of those factories have similar logistical setup: output goes into a storage that is built adjacent to a train station without any belts inbetween to maximaze throughput. The storage has both import and export by trucks enabled and sliders are set up in such a way that the storage only outputs if some minimal stock is present so trucks can grab a load of the resource for one of deliveries like construction and other needs where I don't need the good by trainful. Storage also doesn't accept any input above some level - so the trucks can drop the goods there in case something was deconstructed.

As of now my island goes into multiple death spirals becase my whole "small deliveries" logistics part can't work because the trucks can't grab the resources from linked storages. I workaround it by enabling export on storages on the other side but many of them aren't accesible by trucks since they weren't designed so, unlike mini factories.

I really hope it's a bug because bugfix patch that borks half of the logistics on my save and requiring rebuilding most of my factories kinda sucks.

Same problem. v0.8.7a on Linux. This is not a bug in the "idle station" case, it is how the code works: the storage's truck import/export toggle is force-disabled whenever the storage is port-connected to a station module AND the station has an arrival rule for that product. Arrival rules are auto-created for every product a module holds and can't be removed, so there is no way to turn this off. The 4.2 patch note says "while the station is loading or unloading it", but the lock is permanent as long as the module exists.

My whole storage network was built on storages port-attached to train stations, with trucks importing and exporting from them under my own control. Every one of those is now locked and every save that uses that layout is broken. The only ways out are demolishing and rebuilding with conveyors between storage and station.

Please give this a toggle, per storage or per station. The reservation logic can stay on by default. Players who built around the old behaviour need a way to opt out without rebuilding.

Until it is fixed, ALL of my saves are bricked.