When a path is selected in "Unstaged Changes", it can be staged (obviously). When it is staged, the path goes to the "Staged Changes" list, and no (new) path is selected. I propose that this action should re-select a new path, from the list of paths in "Unstaged Changes".
Steps to reproduce (in git-gui): 1. Open git-gui in a repository which has two or more uncommited, changed files. 2. Select a path in the list of "Unstaged Changes" 3. Click CTRL/CMD+T to stage the file. 4. Observe how no (new) path is selected, forcing you to re-select another path if you want to stage it.
