Werk #10107: CLI: Don't crash on manual parent scan from the command line without a specific host

Component Core & setup
Title CLI: Don't crash on manual parent scan from the command line without a specific host
Date Sep 18, 2019
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.6.0 2.0.0i1
Level Prominent Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

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