To pass an earlier CT the configuration property ds.ctworkaround has been introduced in
The CT bug expecting a writable Dictionary has been fixed in the mean time. So for this part, the work around is not required any longer.
The second reason for the workaround is the CT creating configurations bound to the test class bundle and thus not applicable to the target bundle providing the test components. The spec has been updated for multi-location binding but kept the original single-bundle location binding mechanism and thus our implementation is correct when regular bundle location binding is used in the tests