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Werk #19620: Fix crash when rendering reports with global customer context

Component Reporting & availability
Title Fix crash when rendering reports with global customer context
Date May 5, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
3.0.0b1
Not yet released
Checkmk Ultimate MT
2.5.0p2 Checkmk Ultimate MT
2.4.0p29 Checkmk Ultimate MT

Previously, rendering a report would crash with a KeyError: '' if the report's customer context was set to the global customer. This has been fixed.

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