When multiple instances of LogView are open, resizing one window updates the size of the other.

To Reproduce:

1. Open a repository, with committed changes.
2. Select a commit in the history with 2 or more updated files.
3. Select one file from the commit, and 'Log History'.
4. Select another file from the commit, and 'Log History'.
5. Ensure windows aren't maximised, and place such that they don't entirely occlude each other.
6. Resize one window.

Note that as this window resizes, so too does the other window. This can be replicated with N Windows.

Maximise is also affected.