tests + bug fixing

src/entt/entity/registry.hpp

@@ -440,10 +440,12 @@ public:
         const auto other = create();
 
         for(auto pos = pools.size(); pos; --pos) {
-            auto &cpool = std::get<0>(pools[pos-1]);
+            auto &tup = pools[pos-1];
+            auto &cpool = std::get<0>(tup);
 
             if(cpool && cpool->has(entity)) {
                 cpool->clone(other, entity);
+                std::get<1>(tup).publish(*this, other);
             }
         }
 

test/entt/entity/registry.cpp

@@ -719,6 +719,11 @@ TEST(DefaultRegistry, ComponentSignals) {
 
     ASSERT_EQ(listener.counter, 1);
     ASSERT_EQ(listener.last, e1);
+
+    e1 = registry.clone(e0);
+
+    ASSERT_EQ(listener.counter, 2);
+    ASSERT_EQ(listener.last, e1);
 }
 
 TEST(DefaultRegistry, TagSignals) {