Method Reinsert

src/tracks/ui/TimeShiftHandle.cpp:707–718

      }

      void Reinsert(
         std::unordered_map< Track*, Track* > *pCorrespondence, double offset )
      {
         for (auto &pair : detached) {
            auto pTrack = pair.first;
            if (pCorrespondence && pCorrespondence->count(pTrack))
               pTrack = (*pCorrespondence)[pTrack];
            auto &pShifter = state.shifters[pTrack];
            if (!pShifter->Attach( std::move( pair.second ), offset ))
               MigrationFailure();
         }
      }

      ClipMoveState &state;
      DetachedIntervals detached;