rt02.addReplacement( f02, t02 );
rt02.addReplacement( f01, t01 );
assertEquals( "t02", rt02.transform( f02 ) );
// after cleaning
rt02.clean();
rt02.addReplacement( f02, t02 );
rt02.addReplacement( f01, t01 );
assertEquals( "t02", rt02.transform( f02 ) );
}