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Two conflicts, and both are the same collision: mantra took schema v15 while this branch was also calling its migration v15. **The version number.** mantra's v15 adds `ChatRoom.joinedGroupAt` with a manual MIGRATION_14_15, because half of what it does -- deleting the placeholder chat lines already written for messages sent before this device joined -- is not a shape Room generates. That is the older claim on the number and it keeps it. The index migration here becomes `AutoMigration(from = 15, to = 16)` and the database goes to v16, so a device that has already run v15 gets the index on top of it rather than the two fighting over one version. `15.json` is resolved to mantra's wholesale -- an add/add conflict between two unrelated schemas is not something to merge line by line -- and 16.json is regenerated from the build. Checked rather than assumed: 16.json differs from 15.json in exactly one place, `index_ChatMessage_chatRoomId`, and no table's fields, createSql or other indices move. **mantra's new membership lines needed handling here**, and nothing would have told me: `98f766f` added `TYPE_MEMBER_INVITED`, `TYPE_MEMBER_INVITE_SENT` and `TYPE_MEMBER_INVITE_FAILED`, which the transcript renders as system notices. The chat list preview dispatches on the same question the transcript does -- is this somebody's words -- and a type missing from that check falls through to the chat bubble branch. A room whose newest line was an invite would have previewed as "Alice: Invited Bob to the group", which reads as Alice having said it. Exactly the failure `ChatMessage.MEMBERSHIP_TYPES`' own comment warns about, one screen over from where it was written. So `MEMBERSHIP_TYPES` joins the ritual and chronicle sets in `lastChatMessagePreviewText`. They are not in the AUTHORED sets -- their content is a whole sentence with the invitee's name already in it -- so they stand alone, which is what the transcript does with them too. One new test, over all three types rather than a representative one, since the set is the thing being relied on. Nothing else needed reconciling. mantra's pre-join fix filters at indexing time and deletes the rows outright, so the last-message subquery sees fewer rows and needs no `memberSince` clause of its own to stay in step with the transcript. 550 jvm tests and 319 android unit tests pass. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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