Description

When there are 20 or more files involved in a revision, opening details will crash jjui.

Steps to Reproduce the Problem

1. Create a clean jj/git repo.
2. Add a folder with 20 empty files.
3. Open jjui and then open details for the revision.
4. Crash to terminal

Specifications

• Platform: NixOS-Unstable
• Version: Latest commit (df9bcec)