Werk #11780: proxmox_ve_backup_status: crash if last_backup is null

Component Checks & agents
Title proxmox_ve_backup_status: crash if last_backup is null
Date Dec 21, 2020
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.1.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)
2.0.0b3 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

In case the agent_proxmox_ve returns no backup data (last_backup is 'null' in JSON data) the parsing function would crash. This fix handles this case appropriately.

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