Zabbix

...G...... [ZBX-25236] corrected MQTT message handler not to block

* commit 'f5ae0ed7287fd2a12e19c37b7e24b053e7b9d417':
  ...G...... [ZBX-25236] added changelog entry
  ...G...... [ZBX-25236] corrected MQTT message handler not to block