public interface I<X extends Y> extends baseI {
}

Moving the above to a different package did not take into account whether an
import statement needed to be added (or presumably removed in other situations)
for Y, resulting in the newly moved interface now having an error because it
could not resolve Y. (The interface was in the same package as Y, but was moved
to a different package). It did properly deal with the import statements related
to baseI.

workaround: manually add any necessary import statements.