l3pp4rd/DoctrineExtensions — Issue #229: [Tree] synchronize after remove 
Author: l3pp4rd
Created: 2012-01-11 10:34:44+00:00
State: open

There might be an issue that left, right values of unitOfWork identityMap, are not synchronized and left invalid, which may cause any further operation into a failure.
For quick solution `$em->clear();` after flush which has removed some entity will solve it