`<C-w>w` does not jump from right pane to left pane when comparing two files

Describe the bug
<C-w>w does not jump from right pane to left pane when comparing two files

To Reproduce
Steps to reproduce the behavior:

1. Open two new files in VS Code and type something random in both files;
2. In VS Code's Exlorer:
   a. select the two files;
   b. right-click;
   c. select "Compare Selected" in the pop-up menu;
3. Ensure the cursor is on the left pane (e.g. by clicking the text in the left pane);
4. Press Ctrl+w, w;
5. See the cursor jump to the right pane;
6. Press Ctrl+w, w again;
7. See that the cursor does not jump back to the left pane.

Expected behavior
The cursor should jump back to the left pane.

Environment (please complete the following information):

• Extension (VsCodeVim) version: 1.12.4
• VSCode version: 1.41.1
• OS: Pop!_OS 19.10 (which is like Ubuntu 19.10 with a fancy theme and different GNOME desktop default settings)

Reproduce the issue in VS Code by comparing two selected files and pressing Ctrl+w, w from each pane. Then trace the VSCodeVim handling for this key sequence and compare-pane behavior; done means the cursor cycles from the left pane to the right pane and back again.