xelatex leaves tracked .log/.toc/.aux files (and sometimes intermediate .pdfs in papers/arxiv-*/) modified after each run. Those unstaged modifications don't need to be preserved — the auto-build only commits system/public/papers.aesthetic.computer/ + metadata.json + BUILDLOG.md — but they block `git pull --rebase origin main`, which silently breaks the push step and causes the oven's local main to diverge from origin. Add a `git checkout -- papers/` cleanup between `git commit` and `git pull --rebase`. Failures are non-fatal; any real rebase conflict will still surface in the next step.