Update app.py

app.py

@@ -45,7 +45,12 @@ os.chdir(str(user_home))
 print("cloning stable-diffusion-webui repo")
 Gitclone(r"https://github.com/AUTOMATIC1111/stable-diffusion-webui.git",user_home / r"stable-diffusion-webui")
 os.chdir(str(user_home / r"stable-diffusion-webui"))
-os.system("git reset --hard "+commit_id)
+os.system("git remote add forge https://github.com/lllyasviel/stable-diffusion-webui-forge")
+os.system("git branch lllyasviel/main")
+os.system("git checkout lllyasviel/main")
+os.system("git fetch forge")
+os.system("git branch -u forge/main")
+os.system("git pull")
 #install extensions
 print("installing extensions")
 Gitclone(r"https://huggingface.co/embed/negative",user_home / r"stable-diffusion-webui" / r"embeddings"  / r"negative")