Rules (4 or 5 hyphens) and 6+ hyphens escape control characters in TS

[Craig Lawrence]

Likely related to how rules are handled (see example 4)
Some examples look like improvements (examples 1 and 2), but others (e.g. 3) look like a regression.

1. Request ---------- Forwarded message ---------\r\n

   • old {"type":"text","text":">> ---------- Forwarded message ---------\r"},{"type":"hardBreak"}
   • new {"type":"text","text":">> ---------- Forwarded message ---------"},{"type":"hardBreak"}

2. Request ------------------------\n[1]

   • old {"type":"text","text":"------------------------\n[1] "}
   • new {"type":"text","text":"------------------------"},{"type":"hardBreak"},{"type":"text","text":"[1] "}

3. Request ------\n # <UGC that doesn't look like an intended list item>

   • old {"type":"text","text":"------\n # <UGC that doesn't look like an intended list item>"}
   • new {"type":"text","text":"------"}]},{"type":"orderedList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"<UGC that doesn't look like an intended list item>"

4. Request -----\n # text

   • old {"type": "rule"}...{"type":"text","text":" # text"}
   • new {"type": "rule"}...{"type":"orderedList","content":[{"type":"listItem","content":[{"type":"paragraph","content":[{"type":"text","text":"text"

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[Craig Lawrence]

• Some examples look like improvements (examples 1 and 2), but 3 looks like a regression. Investigations documented here: https://hello.atlassian.net/wiki/spaces/~63da2365db4f715c971fc5a7/pages/2995891855. Patching of these bugs has been abandoned (for now) because in most cases the Library improves upon the TypeScript parsing, and we are willing to tolerate the noise in the logs :noisey-horn:.

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