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Werk #9509: Fix site restore "Failed to open the backup: invalid header"

Component Firmware
Title Fix site restore "Failed to open the backup: invalid header"
Date Dec 9, 2022
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Appliance Version 1.5.6 1.6.0

When executing a restore of a system backup including the monitoring sites, the restore of a site could fail in case the site was using a different Checkmk version than the current default Checkmk version.

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