Temperature in degrees Fahrenheit increases and decreases by degrees Celsius

1. Open Climate-app
   Left temperature has value 71.0 degrees Fahrenheit
2. Click to button "-" for left seat
   Left temperature became value 70.0 degrees Fahrenheit
   Thought it should be changed by 0.9 degrees Fahrenheit (0.5 degrees Celsius)
3. Continue decreasing value
   69.0, 68.0, 67.0, 66.0, 65.0, 64.0, 64.0, 63.0

• value 64.0 was repeated two times

Expected result:

70.7,  69.8, 68.9, 68.0, 67.1, etc.

Actual result:

69.0, 68.0, 67.0, 66.0, 65.0, 64.0, 64.0, 63.0