kegsay ed04eed441 Fix sqlite migration issues (#1960) ... * Do not store 'null' in the database for empty JSON arrays This can cause issues, though it should be noted that the majority of the time this will marshal/unmarshal just fine, see https://play.golang.org/p/Doe2NZUgv7Q * bugfix: sqlite migration should handle create events as having no 'before' snapshot The state snapshot for any given event in the roomserver represents the state _before_ the event. For the create event, this is nothing, so the state snapshot nid should be 0. In some cases this wasn't happening, resulting in a nice mix of possible options including: - A state snapshot without any state blocks `[]` or `null`. - A state snapshot with a single state block with a single event, the create event, causing a circular loop. This is incorrect as it represents the state before the event, not after. * Add state key check		2021-08-04 17:08:17 +01:00
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20201028212440_add_forgotten_column.go	State storage refactor (#1839)	2021-04-26 13:25:57 +01:00
2021041615092700_state_blocks_refactor.go	Fix sqlite migration issues (#1960)	2021-08-04 17:08:17 +01:00