Unreadable document created in certain cases

[tmathew0309]

Checklist

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Describe the bug Getting the following error when reading in a serialized document:

org.graalvm.polyglot.PolyglotException: Uncaught TypeError: Cannot read properties of undefined (reading 'origin')
	at <js>.integrate(yjsBackendBundle.js:19628)
	at <js>.integrateStructs(yjsBackendBundle.js:11897)
	at <js>.:=>(yjsBackendBundle.js:11962)
	at <js>.transact(yjsBackendBundle.js:13628)
	at <js>.readUpdateV2(yjsBackendBundle.js:11950)
	at <js>.applyUpdateV2(yjsBackendBundle.js:12045)
	at <js>.applyUpdate(yjsBackendBundle.js:12059)

Document is now effectively corrupted and the user has lost what they were working on.

To Reproduce We haven't been able to reproduce this error yet but two separate clients have run into it over the course of a week. Will continue trying to narrow down what situations seem to cause it.

Expected behavior Serialized document is always readable

Screenshots If applicable, add screenshots to help explain your problem.

Environment Information

• Happens on both browser and node. x
• yjs: 13.5.18

Additional context We use a mostly vanilla setup but our clients and server exchange state vectors every minute to calculate and exchange diffs using encodeStateVectorFromUpdate and diffUpdate. Not sure if that helps narrow down why this kind of issue might arise.

_{Huly®: YJS-388}

[nllevin]

Hi @dmonad, we ran into this issue again recently. Curious whether you have any updates or any guesses about how documents end up in this unreadable state?

[dmonad]

This is fixed in the last release. Please open a new issue if it still persists.