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It seems there are some cases that [this upstream PR](https://github.com/toeverything/blocksuite/pull/4747) will cause data loss.
Because of some historical reasons, the page id could be different with its doc id.
It might be caused by subdoc migration in the following (not 100% sure if all white screen issue is caused by it) 0714c12703/packages/common/infra/src/blocksuite/index.ts (L538-L540)
In version 0.10, page id in spaces no longer has prefix "space:"
The data flow for fetching a doc's updates is:
- page id in `meta.pages` -> find `${page-id}` in `doc.spaces` -> `doc` -> `doc.guid`
if `doc` is not found in `doc.spaces`, a new doc will be created and its `doc.guid` is the same with its pageId
- because of guid logic change, the doc that previously prefixed with `space:` will not be found in `doc.spaces`
- when fetching the rows of this doc using the doc id === page id,
it will return EMPTY since there is no updates associated with the page id
The provided fix in the PR will patch the `spaces` field of the root doc so that after 0.10 the page doc can still be found in the `spaces` map. It shall apply to both of the idb & sqlite datasources.
Special thanks to @lawvs 's db file for investigation!
AFFiNE Electron App
Development
To run AFFiNE Desktop Client Application locally, run the following commands:
# in repo root
yarn install
yarn workspace @affine/native build
yarn dev
# in packages/frontend/electron
yarn generate-assets
yarn dev # or yarn prod for production build
Troubleshooting
Credits
Most of the boilerplate code is generously borrowed from the following