Fix early drop of eventhandlers (#2126)

* fix early drop of eventhandlers

* add a test for stale props that are memorized in place

* fix clippy

packages/core/src/diff/component.rs

@@ -83,9 +83,6 @@ impl VNode {
             return;
         }
 
-        // First, move over the props from the old to the new, dropping old props in the process
-        dom.scopes[scope_id.0].props = new.props.duplicate();
-
         // Now run the component and diff it
         let new = dom.run_scope(scope_id);
         dom.diff_scope(to, scope_id, new);