Don't vote down just to get a easier game. Let's make a good game more and more realistic!!

what you did is just posing a simple observation, without checking it in detail, i don't think it's as simple as you say
because the "cold status" shows up when your body temperature drops below a certain value, i think it was 34.5°C
so let's assume your body temperature is at 34.4°C and you go close to a fireplace, warm up by 0.1°C and loose the status "cold". that could be what you experienced, but be no bug because, like that, you would not be back to 37°C, which is the normal body temperature, just lost the status

on the other hand, if you instatly warmed up to 37°C or warmed up from 34°C to 34.5°C it's most likely a bug

so before you whine about people downvoting your report, provide more detail, and eleminate the most probable reason it could have been that way

i am quite sure the bug you imagined there to be, is not real. i have experienced it differently: i was cold, made fire waited a bit until i have warmed up (was propably 0.2-0.3°C below the trigger temperature), then went to get more wood, and became cold again

That is true, i did it today at least 4 times, and i have a thermometer.
I checked after and before with it. When the "you are warming up" message appear, my temperature jumped from 35º or below to 36,6º every time.

I understand your point, but think with me:

I'm cold and shaking, so my temperature is 34.4°C (just using your values to be specific). Set fire up, get the "You are slowly warming up" and my temp go to 34.5°C in one second, I loose the "cold" status and move on.

Can I run at forest for 5 minutes with pants ruined receiving the report "You are promptly/rapidly cooling off" without lose 0.5°C?

No one can respond this question, but myself. Next time I'll test with a thermometer to confirm if this is a bug or not.

BTW, thanks for your note

Edit: thanks Polini for test it for me!!