[FIX] qweb: evaluate body of t-set immediately

src/qweb/expression_parser.ts

@@ -42,6 +42,7 @@ export interface QWebVar {
   id: string; // foo
   expr: string; // scope.foo (local variables => only foo)
   value?: string; // 1 + 3
+  hasBody?: boolean;
 }
 
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