Fix QR code is rendered multiple times in results report #147
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Description of the issue/feature this PR addresses
This Pull Request ensures that QR codes are only rendered once
Current behavior before PR
In some cases, the QR code is rendered more than once
Desired behavior after PR is merged
QR code is only rendered once
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I confirm I have tested this PR thoroughly and coded it according to PEP8
and Plone's Python styleguide standards.