-Attempts to fix godot-rust#138. Revert of ac02be1.

Author: thebigG

godot-core/src/builtin/meta/signature.rs

@@ -163,7 +163,7 @@ macro_rules! impl_signature_for_tuple {
                     .unwrap_or_else(|e| return_error::<$R>(method_name, &e));
 
                 // FIXME is inc_ref needed here?
-				// std::mem::forget(ret_val);
+				std::mem::forget(ret_val);
             }
         }
     };

godot-core/src/macros.rs

@@ -414,7 +414,7 @@ macro_rules! gdext_ptrcall {
 
         <$($RetTy)+ as sys::GodotFfi>::write_sys(&ret_val, $ret);
         // FIXME is inc_ref needed here?
-        // #[allow(clippy::forget_copy)]
-        // std::mem::forget(ret_val);
+        #[allow(clippy::forget_copy)]
+        std::mem::forget(ret_val);
     };
 }

godot-core/src/obj/base.rs

@@ -40,7 +40,8 @@ impl<T: GodotClass> Base<T> {
         assert!(!base_ptr.is_null(), "instance base is null pointer");
 
         // Initialize only as weak pointer (don't increment reference count)
-        let obj = Gd::from_obj_sys_weak(base_ptr);
+
+        let obj = Gd::from_obj_sys(base_ptr);
 
         // This obj does not contribute to the strong count, otherwise we create a reference cycle:
         // 1. RefCounted (dropped in GDScript)

godot-core/src/obj/gd.rs

@@ -86,11 +86,17 @@ where
     where
         T: cap::GodotInit,
     {
-        unsafe {
+        let result = unsafe {
             let object_ptr = callbacks::create::<T>(ptr::null_mut());
             Gd::from_obj_sys(object_ptr)
+        };
+
+
+        T::Mem::maybe_init_ref(&result);
+        result
         }
-    }
+
+
 
     /// Creates a `Gd<T>` using a function that constructs a `T` from a provided base.
     ///