Werk #3248: Avoid broken list of context filters and case of a BI error

Component	User interface
Title	Avoid broken list of context filters and case of a BI error
Date	Feb 26, 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

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