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https://issues.apache.org/jira/browse/JCR-2577?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jukka Zitting updated JCR-2577:
-------------------------------

    Fix Version/s: core 1.4.12
                   1.6.2

Merged to the 1.6 and 1.4 branches in revisions 948500 and 948501.

> SISM.checkAddedChildNodes() prevents merging of concurrent changes
> ------------------------------------------------------------------
>
>                 Key: JCR-2577
>                 URL: https://issues.apache.org/jira/browse/JCR-2577
>             Project: Jackrabbit Content Repository
>          Issue Type: Bug
>          Components: jackrabbit-core
>    Affects Versions: 2.0.0
>            Reporter: Marcel Reutegger
>             Fix For: core 1.4.12, 1.6.2, 2.0.1, 2.1.0
>
>         Attachments: JCR-2577.patch
>
>
> This is a regression caused by JCR-2456. The check method reports false 
> positives and prevents merges of concurrently removed child nodes.
> The check is done before the local item states are connected to their shared 
> states, which means getAddedChildNodes() will always return the complete list 
> of local child nodes. In addition the merge attempt is also done after the 
> check, which means it is impossible to handle concurrently removed child 
> nodes.

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