Hitting escape closes the commit window without any attention message

It's really really really annoying to write a long message commit message and afterwards erasing it simply by hitting escape key by mistake. Please prompt a message like: "Are you sure you want to close this window?" and maybe a checkbox with "Don't show this again".

Testcase:

right click in git directory
select "Commit to <>" Result: new window opens. Hitting ESC key closes the window without any prompt.

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