Werk #6073: BI Aggregation Group Tree: Fixed missing filter

Component	BI
Title	BI Aggregation Group Tree: Fixed missing filter
Date	May 9, 2018
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.6.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

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