Injection point should be re-validated if the corresponding producer was changed.

EXECUTE: Create any CDI project.
EXECUTE: Create:

public class Foo {
	@Inject Test test;
}

public class Test {
}

public class Test2 {
	public Test foo() {
		return new Test();
	}
}

EXECUTE: Build the project.
ASSERT: No validation problems on @Inject Test test; (in Foo class)
EXECUTE: Add @Produces to Test2.foo():

public class Test2 {
	@Produces
	public Test foo() {
		return new Test();
	}
}

EXECUTE: Save Test2.java
FAILURE: @Inject Test test (in Foo class) is NOT marked as ambiguous injection
ASSERT: @Inject Test test (in Foo class) is marked as ambiguous injection
EXECUTE: Comment @Produces to Test2.foo():

public class Test2 {
	// @Produces
	public Test foo() {
		return new Test();
	}
}

EXECUTE: Save Test2.java
ASSERT: @Inject Test test (in Foo class) is NOT marked as ambiguous injection