Create two input parameters, rename one, delete the other. Subassembly composer freezes.

been there since 2013! please fix

http://forums.autodesk.com/t5/autocad-civil-3d-general/subassembly-composer-error-when-deleting-input-parameters/m-p/4917228/highlight/false#M245108

Have been told that this will be fixed in the later release!