Revision 17919: 00_MQTT2_SERVER.pm: send a message only once, event if it is ...
00_MQTT2_SERVER.pm: send a message only once, event if it is subscribed twice (Forum: #91394)
Source: Revision 17919: 00_MQTT2_SERVER.pm: send a message only once, event if it is ... (http://svn.fhem.de/trac/changeset/17919/trunk)