Werk #3291: Improved error handling when searching for BI aggregations with invalid regex

Component	BI
Title	Improved error handling when searching for BI aggregations with invalid regex
Date	Mar 15, 2016
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.4.0i1 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT 1.2.8b7 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

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