BUG: Cannot update recurring task plan/description ("description skipped (recurring task)")

Summary

Editing a recurring task’s plan/description does not persist. The UI continues showing the old plan text even after an update attempt.

Observed while trying to update a recurring Gmail triage task plan from: "~1 week old (7–8 days)" to: "anything in inbox older than 7 days (in:inbox before:today-7d)".

Expected

Recurring task description/plan should update and persist; task editor should reflect new text.

Actual

Update attempt is ignored and task remains unchanged. Internal hint/error seen: description skipped (recurring task) (appears to be a server-side guard that prevents updates).

Repro steps

1. Create a recurring task (any cadence).
2. Attempt to update the task description/plan/body.
3. Reload / view task in UI.

Notes

• This blocks iterating on recurring automations without recreating them.
• Workaround today is to create a new recurring task and delete the old one.

Environment

• Date observed: 2026-06-04
• Timezone: IST

Evidence

• System behavior message: description skipped (recurring task)

Please confirm whether recurring task descriptions are intentionally immutable; if not, likely a bug in update path / API validation.