Werk #8300: Fix "Add to report..." button for adding graphs to reports

Component	Reporting & availability
Title	Fix "Add to report..." button for adding graphs to reports
Date	Sep 11, 2015
Level	Prominent Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.2.7i3 Checkmk Enterprise (CEE), Checkmk MSP (CME)

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