When the app is in full-screen mode, and a commit is being prepared, pressing the Escape key does not abort the commit editing session but rather instead moves the app out of full-screen mode.

(Compare with the correct behaviour when a commit is being made in regular windowed mode.)

STR:

1. Put app into full-screen (ctrl-cmd-F)
2. Begin a commit (cmd-shift-C)
3. Press Esc.

Expected: commit is aborted.

Actual: app reconfigures itself to a non-full-screen window; commit continues.

Design note:

At present, when in full-screen mode but not making a commit, pressing Esc will also bring the app out of full-screen. My preference would be for this never to occur; pressing the full-screen shortcut (ctrl-cmd-F) a second time already affords this behaviour.

The current design overloads the Esc key context-dependently, for arguably little gain.