Werk #8790: Don't crash if no image/file is selected in an upload dialog

Component User interface
Title Don't crash if no image/file is selected in an upload dialog
Date Aug 28, 2019
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 1.6.0b8 2.0.0i1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

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