Handle [] leniently in constructor binding

See gh-34305

spring-context/src/test/java/org/springframework/validation/DataBinderConstructTests.java

@@ -188,6 +188,17 @@ class DataBinderConstructTests {
 		assertThat(target.integerList()).containsExactly(1, 2);
 	}
 
+	@Test
+	void simpleListBindingEmptyBrackets() {
+		MapValueResolver valueResolver = new MapValueResolver(Map.of("integerList[]", "1"));
+
+		DataBinder binder = initDataBinder(IntegerListRecord.class);
+		binder.construct(valueResolver);
+
+		IntegerListRecord target = getTarget(binder);
+		assertThat(target.integerList()).containsExactly(1);
+	}
+
 	@Test
 	void simpleMapBinding() {
 		MapValueResolver valueResolver = new MapValueResolver(Map.of("integerMap[a]", "1", "integerMap[b]", "2"));