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Tino Goratsch authored
save current progress at refactoring the NestedSet class extracted the logic from the NestedSet class into separate classes simplified the usage of the reworked NestedSet class various bug fixes and minor refactorings minor doc block fix reduced code duplication in the NestedSet\Insert() class refactored the menu items cache helper a bit refactored the nested set operation even more (eliminated some code duplication) removd the executeTransactionalQuery() method from the Model, as there is already an method in the DB class simplified the SQL queries in the Service models a little bit refactored the Breadcrumb class
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