Closes #36978 This PR fixes an issue that we would only show the first `root -> child` session in compact mode, but the session that came after it, we would only show the child session label instead of also adding the parent label due to compact mode. ## Before <img width="348" height="173" alt="Screenshot 2025-08-27 at 22 18 39" src="https://github.com/user-attachments/assets/ad6afd3a-196d-497f-812a-00698676ee90" /> ## After <img width="563" height="211" alt="Screenshot 2025-08-27 at 21 57 16" src="https://github.com/user-attachments/assets/a953ef2a-a796-4160-b868-96e96f81c858" /> With 3 parent + child sessions and one parent session only. <img width="484" height="223" alt="Screenshot 2025-08-27 at 22 22 13" src="https://github.com/user-attachments/assets/a26f79a4-63a5-43d0-a714-d62cb1995e6e" /> cc @cole-miller I know we hacked on this some while ago, so figured you might be the best guy to ask for a review. Release Notes: - Debugger: Fix to allow showing more than 1 compact session item --------- Co-authored-by: Anthony <anthony@zed.dev>