lock <comp> in collocations

src/view/modals.py

@@ -64,11 +64,12 @@ def edit_example(example, sense):
             result.append(h("span.example-component-button.example-component-none",
             {"on": {"click": role_msg(idx, "none")}}, "N"))
 
-        result.extend([
-            h("span.example-component-button",
-            {"on": {"click": message.msg(message.ExampleComponentAdd, example_original, idx)}}, "+"),
-            h("span.example-component-button",
-            {"on": {"click": message.msg(message.ExampleComponentRemove, example_original, idx)}}, "-")])
+        if "-" not in example.inner.other_attributes["structureName"]:
+            result.extend([
+                h("span.example-component-button",
+                {"on": {"click": message.msg(message.ExampleComponentAdd, example_original, idx)}}, "+"),
+                h("span.example-component-button",
+                {"on": {"click": message.msg(message.ExampleComponentRemove, example_original, idx)}}, "-")])
 
         return result