Foreign Key Constraint errors due to incorrect flush ordering

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      The method DbOperationManager#sortByReferences uses the cached entity state to compute the flush ordering. This need not necessarily reflect the state in the database.

      Example:
      Assume a persistent execution structure a <- b <- c
      In one transaction:
      1. remove b such that new tree is a <- c (can happen when concurrency ends and a concurrent parent is removed)
      2. Remove a and c

      The above-mentioned method now takes into account the relationship from a <- c, so the relation of c to b is ignored and the flushed DELETEs may be ordered incorrectly

      When fixing this, please re-add the failing test cases of CAM-3453

        This is the controller panel for Smart Panels app

              Assignee:
              Unassigned
              Reporter:
              Thorben Lindhauer
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