Remove useless id check on mixins

Fixes #4445
Polymer · Mar 20, 2017 · 8c1a576 · 8c1a576
1 parent 3d054ba
commit 8c1a576
Showing 1 changed file with 1 addition and 3 deletions.
diff --git a/lib/utils/mixin.html b/lib/utils/mixin.html
@@ -51,9 +51,7 @@
   Polymer.dedupingMixin = function(mixin) {
     mixin = cachingMixin(mixin);
     // maintain a unique id for each mixin
-    if (!mixin.__id) {
-      mixin.__dedupeId = ++dedupeId;
-    }
+    mixin.__dedupeId = ++dedupeId;
     return function(base) {
       let baseSet = base.__mixinSet;
       if (baseSet && baseSet[mixin.__dedupeId]) {