repo dirs not checked out

[Jerry Nairn]

There seems to be some inconsistency in the way directories with no CVS
admin subdirectory are treated by different commands. This only seems to
show up when you have a non-cvs controlled directory with a name which
corresponds to a directory name in the repository.
For example, if the repository has top level directories named foo and blah,
and you:

$ cvs checkout foo
$ mkdir blah

cvs annotate, commit, diff, status, and update can quietly skip blah.

cvs log barfs on it.

$ cvs log .
cvs log: Logging blah
cvs log: in directory blah:
cvs [log aborted]: there is no version here; do 'cvs checkout' first

Why should there be such a difference, especially between commands like
status and log? Is it a bug, and if so, which commands are behaving
correctly?
Jerry