Review Request 73121: RANGER:3143: Ranger usersync, user group mapping for user deletion is not syncing up, if only one user is present in the group

[Sailaja Polavarapu]

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Review request for ranger, Abhay Kulkarni, Mehul Parikh, Ramesh Mani, and 
Velmurugan Periasamy.


Bugs: RANGER-3143
    https://issues.apache.org/jira/browse/RANGER-3143


Repository: ranger


Description
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Fixed issue while retrieving groups with no memberships


Diffs
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ugsync/src/main/java/org/apache/ranger/unixusersync/process/UnixUserGroupBuilder.java
 597cbf8c0 


Diff: https://reviews.apache.org/r/73121/diff/1/


Testing
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Patched cluster and tested the functionality and basic regressions.
Also verified all the existing unit tests are successful


Thanks,

Sailaja Polavarapu