Merge branch 'bugfix/throw-exception-for-empty-upload-comment' into 'develop'

Throw an extension when upload with empty upload comment

See merge request !363
5 jobs for develop in 6 minutes and 22 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
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test:php

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passed #8960
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  Build
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build

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  Layout
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layout

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  Deploy
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deploy-develop

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