Does not round correctly

[RubenKelevra]

Description

I've noticed that Better Thermostat is not rounding correctly:

0.6 °C difference is rounded the wrong way and is increased to 1.0 °C for no apparent reason.

Steps to Reproduce

unknown

Expected behavior:

Should round correctly.

Actual behavior:

Does not round correctly.

Versions
HA: 2024.11.1
BT: 1.6.1 with PR #1472 and #1473 applied - otherwise unusable.

Additional Information

[folfy]

This is working as designed - If you enable calibration with better thermostat, it is going to offset the target temperature by the difference between the TRV measured temperature and the actual temperature.

So 22°-20.6° = 1.4° + 20° target = 21° (BT always rounds down to half degrees, which ofc is debateable, but that's how it works)