[Tempest Weatherflow] When station offline: 1) history repeats last measurement forever, 2) one warning per minute in log about homebridge-weather-plus HOT 11 OPEN

Looking at https://github.com/naofireblade/homebridge-weather-plus/blob/master/apis/weatherflow.js, I don't understand how it could ever get set to undefined by the actual Weatherflow plugin though:

• line 311: that.currentReport.RainBool = true;
• line 378: that.currentReport.RainBool = message.obs[0][3] > 0 ? true : false;
• line 431: that.currentReport.RainBool = message.obs[0][12] > 0 ? true : false;

These are the only 3 lines modifying RainBool. So that suggests the bug lies in the overarching infrastructure? 🤔

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/cc @dacarson

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Looking at the debug information above, all the values are set to their defaults, so it seems that we have not received an initial set of data from the weather station. Which makes sense from your description - the battery is dead.
Looking through the set of initialization data in Weaatherflow.js, I see that RainBool is never set to a default value. A value is only set when a set of data is received. There is an easy fix, to initialize it.

I have the simple fix on my branch, as well as a number of other fixes. Can you remind me how to get the changes onto the main branch?
master...dacarson:homebridge-weather-plus:master

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