When what you type is a partial match, you can't add it as an
unknown parameter, even if that would be the correct action. The
reason for this unexpected edge-case is a mistake in the code
where a variable called "exactMatch" is set when a *partial*
"nameMatch" was found.
Bug: T285940
Change-Id: I6d12e2d7251a19d7d5f8be544c3c32a3ac14fcf0
