WTH: Thermostat graph only shows A/C activity for temperatures above the minimum setting

Over the summer our thermostat (managed by the Honeywell Total Connect Comfort (US) integration) was set to the same temperature overnight every night. The graph never showed any A/C activity at any point when the thermostat and temperature were both at this setting, because that temperature became the bottom of the graph. Since I found no way to change the y-axis values, there was no way to see how often the A/C came on to keep the temperature at the overnight setting.

I would like to have the graphing code always set the lowest y-value of the graph to something below the set temperature so I can see how often the A/C was on.

Unfortunately the data all expired since it got colder or I would show the issue, but hopefully this is clear enough.

Thanks folks!