This issue (SPL-79421) has been resolved in Splunk 6.3 and is incorporated in Splunk 6.4.
You can get the latest Splunk release from: https://www.splunk.com/en_us/download/splunk-enterprise.html
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The link above is an old deprecated one. This is the new link to the Support phone numbers.
http://www.splunk.com/en_us/about-us/contact.html#tabs/customer-support
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