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https://issues.apache.org/jira/browse/OPENJPA-1973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13015105#comment-13015105
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Patrick Linskey commented on OPENJPA-1973:
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Oh, and this is implemented against trunk (2.2.0?). I actually need this 
against 2.1.0 (or for 2.2.0 to release soon). What's the process these days for 
backports etc.? Is there a backport-having mvn repo / branch?

Also, I've got commit rights, but have been negligent in contributing recently. 
Shall I push this, or just interact via JIRA patches?

> Unlocked field support
> ----------------------
>
>                 Key: OPENJPA-1973
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1973
>             Project: OpenJPA
>          Issue Type: New Feature
>          Components: docs, jdbc, jpa
>            Reporter: Patrick Linskey
>            Assignee: Patrick Linskey
>         Attachments: OPENJPA-1973.patch
>
>
> Often, it's desirable to exclude certain fields from the optimistic locking 
> computation. For example, if a PurchaseOrder's lastUpdatedDate field is 
> updated every time a line item is added, it may be acceptable to simply use 
> the latest value instead of requiring an optimistic lock check / collision.
> Let's add support for such fields.

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