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https://issues.apache.org/jira/browse/NIFI-15830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pierre Villard updated NIFI-15830:
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Status: Patch Available (was: Open)
> Fix local change detection for versioned process groups when setting
> previously unset properties
> ------------------------------------------------------------------------------------------------
>
> Key: NIFI-15830
> URL: https://issues.apache.org/jira/browse/NIFI-15830
> Project: Apache NiFi
> Issue Type: Bug
> Components: Flow Versioning
> Affects Versions: 2.9.0
> Reporter: Pierre Villard
> Assignee: Pierre Villard
> Priority: Major
>
> The *isPropertyAddedFromMigration* method in *FlowDifferenceFilters*
> (introduced by NIFI-15776) is too broad. It classifies every *PROPERTY_ADDED*
> diff for a non-dynamic property as an environmental change, without checking
> whether the property already existed in the versioned snapshot. When a user
> sets a previously-unset property (null to value), the comparator produces
> {*}PROPERTY_ADDED{*}, and the filter incorrectly swallows it.
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