Staging and unstaging hunks in project_diff_preview mode doesn't work

[Ternvein]

Description

In project_diff_preview mode using default gs and gu keymaps leads to staging and unstaging the whole file (that is, keymap degrades to just s and u). A quick glance into the code led me to think that gs and gu keymaps registered for diff view, but in project_diff_preview mode default selected window is list view. I couldn't quickly find any way to change the active window, standard C-w <some> doesn't help (in fact, it bugs the VGit popup even more - it becomes unresponsive except for Esc to quit).

• nvim --version output:
  NVIM v0.9.1
  Build type: Release
  LuaJIT 2.1.1692616192
• Operating system: Archlinux