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Werk #19523: Fix crash when saving a configuration bundle that no longer exists

Component Setup
Title Fix crash when saving a configuration bundle that no longer exists
Date Mar 19, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.6.0b1
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.5.0b2
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT

Previously, saving a configuration bundle (via the Parameters for service page) could crash with an AttributeError if the bundle had been deleted between the time the form was loaded and the time the save was submitted — for example, due to a concurrent deletion or a browser tab left open.

The page now handles this case gracefully and redirects back instead of crashing with an internal error.

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