Navigation TBT Directions Incorrect After Starting After Turning

when starting navigation on CarPlay, if you make a turn before you start the navigation, it will show the incorrect first TBT instruction, showing the first TBT instruction before you made the turn.


Start by reproducing the navigation flow on CarPlay: begin navigation only after making a turn and inspect the first turn-by-turn instruction shown. Trace the navigation state used to select that instruction; done means the first instruction reflects the route position after the turn rather than the earlier instruction.

Written by the indexing model from the issue text.