[+BUGFIX] Lifecycle methods are executed twice for advice constructors
Due to the way the proxy classes are rendered, lifecycle method such as
initializeObject() are called twice if the constructor is adviced by some
One symptom for this bug were duplicate root nodes in a single workspace
in TYPO3 Phoenix.
This bug has been auctioned by Volker Graubaum (e-netconsulting) at the
T3BOARD11 and - despite the lean solution - took several hours to solve.