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https://issues.apache.org/jira/browse/SLING-2534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13416283#comment-13416283
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James Phillpotts commented on SLING-2534:
-----------------------------------------
While I agree this isn't very backwards compatible, as the reporter has said,
Sling is behaving in a way that disagrees with the JCR specs, so I think it
should be fixed as described. Existing applications that are depending on
delete-on-blank functionality can use the @Delete annotation to maintain their
expected functionality?
> Strings of zero length on update in post servlet delete the property
> --------------------------------------------------------------------
>
> Key: SLING-2534
> URL: https://issues.apache.org/jira/browse/SLING-2534
> Project: Sling
> Issue Type: Bug
> Components: Servlets
> Affects Versions: Servlets Post 2.1.2
> Reporter: Endolf
> Attachments: blankstrings.patch
>
>
> According to JCR specs, for string type properties, a blank string should be
> a valid value. Currently the post servlet delets any property where 1 or less
> values are specifed and the 1 value has a 0 length. I think string properties
> with a zero length should be blanked instead of deleted.
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