Note: mqtt_as and firmware >= 1.22.0

[peterhinch]

V1.22.0 updated the ESP IDF, which altered the behaviour of the chip when connecting to WiFi. This had the unfortunate effect of causing mqtt_as to lose its ability to recover from outages - a nasty bug that might not be immediately apparent after a firmware update. I have pushed an update that fixes this.

If updating firmware on ESP32 clients, please update mqtt_as.py.