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https://issues.apache.org/jira/browse/SLING-8768?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carsten Ziegeler resolved SLING-8768.
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Resolution: Fixed
Reverted the change with 003f01c
(Also adjusted the tests)
I've also updated the documentation at
https://sling.apache.org/documentation/bundles/manipulating-content-the-slingpostservlet-servlets-post.html
> Revert SLING-2534 and let empty values remove the property
> ----------------------------------------------------------
>
> Key: SLING-8768
> URL: https://issues.apache.org/jira/browse/SLING-8768
> Project: Sling
> Issue Type: Improvement
> Components: Servlets
> Affects Versions: Servlets Post 2.3.28, Servlets Post 2.3.30, Servlets
> Post 2.3.32, Servlets Post 2.3.34
> Reporter: Carsten Ziegeler
> Assignee: Carsten Ziegeler
> Priority: Major
> Fix For: Servlets Post 2.3.36
>
>
> In SLING-2534 we changed the post implementation to treat a posted empty
> value as an empty value. Before, empty values caused the property to be
> removed.
> While the change seemed to be the logical step (we have @IgnoreBlanks and the
> documentation explains it in this way as well), it turns out that a lot of
> existing code expects the (wrong) behaviour that a property is removed if an
> empty value is submitted.
> This makes it an incompatible change breaking existing customers.
> Therefore, we should revert SLING-2534 and update the documentation.
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