Result.row is cached in getRow; this breaks MapReduce
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                 Key: HBASE-1644
                 URL: https://issues.apache.org/jira/browse/HBASE-1644
             Project: Hadoop HBase
          Issue Type: Bug
    Affects Versions: 0.20.0
            Reporter: Doğacan Güney


In Result#getRow row field is computed (if row is null) and then is cached for 
further uses. But since MapReduce uses the same Result instance through 
different map()/reduce() calls, row field is not updated when Result instance 
changes.

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