Werk #12465: Tag configuration: Fixed broken "Tag usage" page

Component Setup
Title Tag configuration: Fixed broken "Tag usage" page
Date Apr 27, 2021
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 2.0.0p6 2.1.0b1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

The "Tag Usage" page failed with an exception if a tag group contained an empty tag.

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