Created attachment 163019 [details]
Invalid return type for method with @return static

Code:

class A {

	/**
	 * Method description.
	 *
	 * @return static
	 */
	public static function test() {

	}
}

class B extends A {

	/**
	 * {@inheritdoc}
	 */
	public static function test() {
		return parent::test();
	}

	public static function testB() {

	}
}

class C extends B {

	public static function testC() {

	}
}

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"C::test()->" gives you hints for A object instead of C (see attachment).