src/vs/workbench/services/keybinding/common/windowsKeyboardMapper.ts/WindowsNativeResolvedKeybinding/_getElectronAccelerator
class WindowsNativeResolvedKeybinding:	protected _getElectronAccelerator(keybinding: SimpleKeybinding): string | null {
		if (keybinding.isDuplicateModifierCase()) {
			return null;
		}
		return this._mapper.getElectronAcceleratorForKeyBinding(keybinding);
	}