don't attempt to get _union field of non-userdata

DFHack · Oct 4, 2024 · 4564717 · 4564717
1 parent 54267e7
commit 4564717
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/gui/gm-editor.lua b/gui/gm-editor.lua
@@ -688,7 +688,7 @@ function GmEditorUi:updateTarget(preserve_pos,reindex)
             end
         end
     end
-    self.subviews.lbl_current_item:itemById('union').text = trg.target._type._union and " [union structure]" or ""
+    self.subviews.lbl_current_item:itemById('union').text = type(trg.target) == 'userdata' and trg.target._type._union and " [union structure]" or ""
     self.subviews.lbl_current_item:itemById('name').text=tostring(trg.target)
     local t={}
     for k,v in pairs(trg.keys) do