- Adding back a deleted outline whose first paragraph is deeper than level 1
  regroups it the way the Level op does, as OneNote stores it.
- TIFF pictures, which OneNote keeps as TIFF, can be added back.
- Equation runs always carry a language, as the spec requires a run style to,
  and the op model predicts it.
- Replay snapshots settle pending pictures before capturing.

Assisted-by: claude-opus-5.5