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J. Nick Koston
ccdb5a3bfb
web_server_idf invokes handleUpload twice with index==0 at the start of every upload (once as a 'Start' signal with nullptr data, then with the first data chunk). The previous fix treated the second call as a stale-session retry, wastefully aborting and re-initializing the backend on every single upload. Store the AsyncWebServerRequest pointer that owns the current session and only tear down the backend when a different request arrives at index==0. Clear the tracked pointer on every backend reset path so a stack-reused request pointer from a later upload cannot collide.
