I found two problems, one of which does not know whether it is a bug or a features.

[Xiao Chenghua]

System Version: macOS 10.14.1 Mojave

Sourcetree Version: 3.0 (200)

1. I just select some files (NOT ALL) and type my commit message, and then, the list of edited files select box did reloaded, now its select ALL;

2. The icon on edited file list's right(three point side by side), height is too small, it very hard to select and click when you want discard this file.

[bgannin]

Hi Xiao,

Please file tickets in our tracker for review and include screenshots. 

Thanks,

Brian Ganninger
Senior Mac Developer, Sourcetree