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https://issues.apache.org/jira/browse/GUACAMOLE-320?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16065639#comment-16065639
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Michael Jumper commented on GUACAMOLE-320:
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This will affect the new user profile attributes as well. Though the effect is
not as horrible (it won't cause connections to fail), it will result in
non-NULL values being stored in the database where the schema dictates the
proper value is NULL.
> Text attributes may erroneously be set as blank
> -----------------------------------------------
>
> Key: GUACAMOLE-320
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-320
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole, guacamole-ext
> Affects Versions: 0.9.13-incubating
> Reporter: Karl Fiabeschi
> Assignee: Michael Jumper
> Priority: Blocker
> Fix For: 0.9.13-incubating
>
>
> The recently-added text attributes for connections and users can be
> accidentally set to a blank value (rather than null) if the value is edited
> and then deleted. This is particularly problematic for the new guacd hostname
> attribute for connections, which causes connections to fail if set to a blank
> value:
> {code:none}
> [http-bio-8080-exec-9] DEBUG o.a.g.net.InetGuacamoleSocket - Connecting to
> guacd at :4822.
> {code}
> For fields which internally use {{null}} to represent a blank value, blank
> values provided by the interface should be properly translated back to
> {{null}}, including {{""}}.
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