Fixed annoying missing ENT._links table error

lua/cfw/core/connectivity_sv.lua

@@ -13,7 +13,7 @@ local function floodFill(source, sinkIndex)
 
         if entIndex == sinkIndex then return true, closed end
 
-        for neighborIndex, _ in pairs(Entity(entIndex)._links) do -- neighborIndex, neighborLink
+        for neighborIndex in pairs(Entity(entIndex)._links) do -- neighborIndex, neighborLink
             if not closed[neighborIndex] then
                 open[neighborIndex] = true
             end

lua/cfw/core/parenting_sv.lua

@@ -92,4 +92,18 @@ hook.Add("Initialize", "CFW", function()
     end)
 
     hook.Remove("Initialize", "CFW")
-end)
+end)
+
+-- In order to prevent NULL entities flooding the ENT._links table, we'll just get rid of them before they get removed
+-- This is a fix for a really annoying issue that was showing up in multiple different ways
+hook.Add("EntityRemoved", "cfw.entityRemoved", function(ent)
+    if not IsValid(ent) then return end
+
+    local links = ent:GetLinks()
+
+    if not links then return end
+
+    for index in pairs(links) do
+        disconnect(ent, index)
+    end
+end)