In3luki

The original playground input was formatted with prettier 3.1.0

The current error is something like this: ``` Error thrown while migrating Actor.L0pXT0ba2Ovsjir9: Cannot read properties of undefined (reading 'flags') ``` Which isn't very helpful to locate where the error...

The `MigrationRunner` method the error occured in, the `Migration` version to identify the actual migration that failed and the `Migration` method the error occured in.

Lose everything but the version number, got it. 😄

``` Error thrown while migrating Actor.sJE82Ad2HKyKAB4k: Migration 0.915: Cannot read properties of undefined (reading 'value') ```

I think it would be beneficial to make the unsanitized, raw, source data available for each `Document` to determine if a database update is necessary. I know that it could...

`ChatMessage`s don't have system data in v11.

I would prefer Choice A. Having the source item information, like the variant and rank, under `item` makes more sense than dumping them directly into origin IMO.