Implements #inspectChangeSet missing in update #616chgSorterMenus-sw.
Fixes a #doesNotUnderstand: error when canceling in #findCngSet.

Bert

-- 
  Bert Freudenberg                                            Department of
                                                             Simulation and
  mailto:bert at isg.cs.uni-magdeburg.de                     Computer Graphics
  http://isgwww.cs.uni-magdeburg.de/isg/bert.html        Univ. of Magdeburg

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