Werk #13885: Fix deletion and moving of report content

Component	Reporting & availability
Title	Fix deletion and moving of report content
Date	Apr 25, 2022
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.2.0b1 Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT 2.1.0b7 Checkmk Pro, Checkmk Ultimate MT 2.0.0p24 Checkmk Pro, Checkmk Ultimate MT

Deletion of report content and moving of report elements was not saved correctly to the according user files.

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