For the issue see: https://redmine.blackboxframework.org/issues/149.
For the discussion see: viewtopic.php?f=40&t=598
For the diffs see: https://redmine.blackboxframework.org/p ... 09ddc6ad20.
Issue-#149 Bug in Kernel.Upper/Lower
Re: Issue-#149 Bug in Kernel.Upper/Lower
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