Merge branch 'hotfix/70' into develop

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Merge branch 'hotfix/59' into develop

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Merge branch 'hotfix/63' into develop

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Merge branch 'hotfix/68' into develop

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Merge branch 'hotfix/69' into develop

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Fix: Undefined field
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Merge pull request #75 from localheinz/bugfix/undefined-field

Fix: Field is undefined
Merge branch 'hotfix/75'

Close #75