fix double drop of bubble id

packages/core/src/virtual_dom.rs

@@ -371,7 +371,8 @@ impl VirtualDom {
             // Loop through each dynamic attribute (in a depth first order) in this template before moving up to the template's parent.
             while let Some(el_ref) = parent_path {
                 // safety: we maintain references of all vnodes in the element slab
-                let template = unsafe { &*el_ref.template.unwrap() };
+                let template =
+                    unsafe { &*el_ref.template.expect("template reference should be valid") };
                 let node_template = template.template.get();
                 let target_path = el_ref.path;