Paranoia: when removing cable/interface, ensure previously known devices are disposed via controller, even if they're currently in unloaded chunks.

src/main/java/li/cil/oc2/common/blockentity/BusCableBlockEntity.java

@@ -251,12 +251,7 @@ public final class BusCableBlockEntity extends ModBlockEntity {
         super.unloadServer(isRemove);
 
         if (isRemove) {
-            // Bus element will usually be discovered via bus scan, not via capability request, so
-            // automatic invalidation via capability will *not* necessarily schedule a scan on the
-            // controller of our current bus. So we need to trigger that manually.
-            // The controller already listens to chunk unloads, so we don't want to call this when
-            // the containing chunk gets unloaded, only when we're being removed.
-            busElement.scheduleScan();
+            busElement.setRemoved();
         }
 
         for (final NeighborTracker tracker : neighborTrackers) {

src/main/java/li/cil/oc2/common/bus/AbstractBlockDeviceBusElement.java

@@ -87,6 +87,22 @@ public abstract class AbstractBlockDeviceBusElement extends AbstractGroupingDevi
         );
     }
 
+    public void setRemoved() {
+        final LevelAccessor level = getLevel();
+        if (level == null || level.isClientSide()) {
+            return;
+        }
+
+        for (final Direction side : Direction.values()) {
+            final int index = side.get3DDataValue();
+            final BlockPos pos = getPosition().relative(side);
+            final BlockDeviceQuery query = Devices.makeQuery(level, pos, side.getOpposite());
+            setEntriesForGroup(index, new BlockQueryResult(query, Collections.emptySet()));
+        }
+
+        scheduleScan();
+    }
+
     ///////////////////////////////////////////////////////////////////
 
     protected boolean canScanContinueTowards(@Nullable final Direction direction) {