Under the hood
Internal rework of how the conversation transcript view computes progress and message lookups
What
The internal function that renders the conversation transcript view now computes its transcript and progress data via a separate split step, and merges a separately-computed progress object into what used to be called lookups (now renamed transcriptLookups).
Why
This is an internal restructuring of how transcript data is computed and named, with no described change to what appears on screen.