`maybeAddImport` adds import although all references are fully qualified

I developing a recipe with OpenRewrite v8.27.1 and have this test:

@Test void isMigratedToMethods_whenFullyQualified() {
    // language=java
    rewriteRun(java(
        """
        package de.foo.bar;
        
        @org.testng.annotations.Test
        public class BazTest {
        
            public void shouldDoStuff() {
                //
            }
        
            public void shouldDoMoreStuff() {
                //
            }
        }
        """,
        """
        package de.foo.bar;
        
        public class BazTest {
        
            @org.junit.jupiter.api.Test
            public void shouldDoStuff() {
                //
            }
        
            @org.junit.jupiter.api.Test
            public void shouldDoMoreStuff() {
                //
            }
        }
        """
    ));
}

The Visitor under test contains a call to maybeAddImport("org.junit.jupiter.api.Test").

What did you expect to see?

No import added, as it is not necessary.

What did you see instead?

 package de.foo.bar;
 
+import org.junit.jupiter.api.Test;
+
 public class BazTest {
 
     @org.junit.jupiter.api.Test

Start by locating the Visitor's maybeAddImport("org.junit.jupiter.api.Test") call and reproduce the issue with the isMigratedToMethods_whenFullyQualified test shown in the report. Trace how fully qualified references are detected; done means the shown test no longer adds an import when every reference remains fully qualified.