qwen4exp fixes in llama.cpp

Llama

Heat trend

Collecting trend data

The percentage is based on available heat signal, not comment count or independent people.

https://preview.redd.it/zoq3j9gnjvmh1.jpg?width=900&format=pjpg&auto=webp&s=bb21bc405696df94fd5ce38c22f4ca6dc596135f