Fix bind:this in each repetitive variable

src/compiler/compile/render_dom/wrappers/shared/bind_this.ts

@@ -54,6 +54,9 @@ export default function bind_this(component: Component, block: Block, binding: B
 
 		const args = [];
 		for (const id of contextual_dependencies) {
+			if (block.variables.has(id.name)) {
+				if (block.renderer.context_lookup.get(id.name).is_contextual) continue;
+			}
 			args.push(id);
 			block.add_variable(id, block.renderer.reference(id.name));
 		}