miswart

/miswort/ , n. [from wart by analogy with misbug ] A feature that
superficially appears to be a wart but has been determined to be the Right
Thing. For example, in some versions of the EMACS text editor, the transpose
characters command exchanges the character under the cursor with the one
before it on the screen, except when the cursor is at the end of a line, in
which case the two characters before the cursor are exchanged. While this
behavior is perhaps surprising, and certainly inconsistent, it has been
found through extensive experimentation to be what most users want. This
feature is a miswart.

