Steps to reproduce

1. Modify a file in two folders: FolderA and FolderB
2. Access SourceTree Working Copy staging area
3. Set Tree View for the staging area
4. Collapse FolderA to hide the modified file in FolderA
5. Stage the modified file in FolderB
   Staging Area refresh after staging the file and expand FolderA to show the modified file

SourceTree shouldn't have expand FolderA and maintain the collapse state