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fix(telegram): advance markdown split on long single-line fences - #5055
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chengyongru merged 3 commits intoJul 23, 2026
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When a fenced code body has no interior newlines, the splitter cut at the opening fence line and re-emitted the same content forever. Prefer breaks inside the body after the fence so long JSON/minified blocks still split.
Adaptive HTML limits can shrink max_len to the fence prefix size. Treat budget <= min_code_pos as a hard cut so the splitter still advances.
A leading space in the fenced body made the soft cut land at min_code_pos and re-emit the same fence forever. Require progress past the fence line.
chengyongru
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priority: p1
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Splitting a Telegram reply that contains a fenced code block with one very long body line (no interior newlines) never advanced and hung the send path.
Hard-cut / reopen the fence so the splitter always makes progress.