In the command customisation dialogue box in the MFC feature pack:
Commands listed under "All Commands" have their names constructed by concatenating menu, submenu, and menu item text, and capitalising the various chunks, so that for example
A menu item
is listed as
The capitalisation is interrupted however if there is an ampersand (indicating a shortcut key) before a lower case letter at the start of a word, so that
A &menu item
(with a lower case m in AmenuItem). This appears to be a cosmetic bug, albeit a minor one.