Werk #3897: Fixed possible exception in raw edition when rendering graphs

Component	User interface
Title	Fixed possible exception in raw edition when rendering graphs
Date	Oct 11, 2016
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.4.0i2 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

To the list of all Werks