ServiceInfo.setText() not working within state probe

[remi0023]

Hi, One of my services tried to update it's TXT record right after it gets registered. But nothing happened. Debugging the situation showed that at the time ServiceInfo.setText() was called the
corresponding ServiceInfo instance were in state 'probe'.
Waiting a bit, until the ServiceInfo instance reached state 'announced', before calling setText() fixed it.
Checking the internal states requires a downcast, because it is not part of the public interface, which is a bit ugly.:/