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https://issues.apache.org/jira/browse/JCR-2650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13201231#comment-13201231
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Jukka Zitting commented on JCR-2650:
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In fact the above deadlock scenario still exists (see JCR-3226). Instead of
stateCreated(), this issue fixed the potential problem with the (much more
frequent) stateModified() method.
> don't silently merge session-local transient changes with external changes
> before save().
> -----------------------------------------------------------------------------------------
>
> Key: JCR-2650
> URL: https://issues.apache.org/jira/browse/JCR-2650
> Project: Jackrabbit Content Repository
> Issue Type: Improvement
> Components: jackrabbit-core
> Reporter: Stefan Guggisberg
> Fix For: 2.2
>
> Attachments: JCR-2650 (cleaned).patch, JCR-2650.patch
>
>
> currently, external changes (i.e. changes committed by other sessions) are
> silently merged with transient changes. this might potentially cause
> concurrency issues/inconsistent transient state (see e.g. JCR-2632).
> it would probably be better to isolate transient changes from external
> changes until they're saved (true copy-on-write).
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