Werk #4563: Fix issue with @ in metric title

Component Metrics system
Title Fix issue with @ in metric title
Date Jul 14, 2017
Checkmk Edition Checkmk Enterprise (CEE)
Checkmk Version 1.4.0p9 1.5.0i1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

The @ sign is used to append a custom unit when used within metric titles. This prevents graphs from being displayed when an @ without a special meaning appears within a metric title. The graphing system now checks for an existing unit within the metric title and leaves the title untouched otherwise.

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