Enhanced "ExecuteOnIdleAsync" to take "AsyncTaskCompletedHandler"
Updated "RevitDynamoModel.ResetEngine" to handle task completion
Updated "RevitDynamoModel.ResetEngine" to mark node as dirty
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into MAGN-5068
Merge branch 'master' of https://github.com/DynamoDS/Dynamo into MAGN-5068
Merge pull request #3059 from Benglin/MAGN-5068

Fixed evaluation failures in successive file open