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I feel the container packages was originally meant to refer to others packages at the same "directory level", not as subdirectories of the container package itself. There was no need for such double role. On other hand, there is this concept of subpackages in CMT which is far from documented, and need investigation.
The bug CMT-38 with Geant4 mentionned in JIRA seems fixed in v1r18. Yet, the overall problem of "cmt show packages" remains : it should be able to parse subdirectories even when they are not packages, at least and even if the super-package has not been checked out. At least subdirectories shoudl be parsed to a configurable depth. So , so that "cmt show uses" is consistent with "cmt show packages".
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