diff --git a/‎src/lib/template/templatizer.html‎
Lines changed: 2 additions & 0 deletions b/‎src/lib/template/templatizer.html‎
Lines changed: 2 additions & 0 deletions
@@ -299,6 +299,8 @@
     _extendTemplate: function(template, proto) {
       var n$ = Object.getOwnPropertyNames(proto);
       if (proto._propertySetter) {
+        // _propertySetter API may need to be copied onto the template,
+        // and it needs to come first to allow the property swizzle below
         template._propertySetter = proto._propertySetter;
       }
       for (var i=0, n; (i<n$.length) && (n=n$[i]); i++) {
Original file line number	Diff line number	Diff line change
`@@ -299,6 +299,8 @@`
`299`	`299`	`_extendTemplate: function(template, proto) {`
`300`	`300`	`var n$ = Object.getOwnPropertyNames(proto);`
`301`	`301`	`if (proto._propertySetter) {`
	`302`	`+ // _propertySetter API may need to be copied onto the template,`
	`303`	`+ // and it needs to come first to allow the property swizzle below`
`302`	`304`	`template._propertySetter = proto._propertySetter;`
`303`	`305`	`}`
`304`	`306`	`for (var i=0, n; (i<n$.length) && (n=n$[i]); i++) {`