When an "Ignore an Unrecognized Word or Phrase" action is present in a command, the "{CMD}" token will not return the spoken phrase, but instead act like "{CMDWHENISAY}" and return the contents of the "When I say" field.
Applies at least as far back as v1.7.3
EDIT: Still applies to v1.8.3.10
EDIT #2: Fixed in v1.8.3.21