minor

editor.lua

@@ -259,7 +259,6 @@ local function create(data)
 
    local function push_children(c)
       for i = #c, 1, -1 do
-         if c[i] ~= false then
          if c[i].x ~= math.floor(c[i].x)
             or c[i].y ~= math.floor(c[i].y)
             or c[i].width ~= math.floor(c[i].width)
@@ -270,7 +269,6 @@ local function create(data)
          open_areas[#open_areas + 1] = c[i]
       end
    end
-   end
 
    local op_count = 0
 
@@ -459,6 +457,18 @@ local function create(data)
             end
          end
 
+         -- clean up children, remove all `false'
+         local j = 1
+         for i = 1, #children do
+            if children[i] ~= false then
+               children[j] = children[i]
+               j = j + 1
+            end
+         end
+         for i = #children, j, -1 do
+            table.remove(children, i)
+         end
+
          push_children(merged_children)
          push_children(children)