Fix Spartan TCP handling
Fix Spartan TCP handling

This PR fixes Spartan TCP queries where two queries are simultaneously
sent over the same TCP socket.

surdy/dcos,lingmann/dcos,kensipe/dcos,jeid64/dcos,BenWhitehead/dcos,mnaboka/dcos,darkonie/dcos,amitaekbote/dcos,branden/dcos,BenWhitehead/dcos,amitaekbote/dcos,dcos/dcos,branden/dcos,amitaekbote/dcos,surdy/dcos,darkonie/dcos,mesosphere-mergebot/dcos,vishnu2kmohan/dcos,vishnu2kmohan/dcos,mellenburg/dcos,branden/dcos,BenWhitehead/dcos,surdy/dcos,dcos/dcos,kensipe/dcos,mnaboka/dcos,darkonie/dcos,mesosphere-mergebot/dcos,BenWhitehead/dcos,mellenburg/dcos,kensipe/dcos,lingmann/dcos,asridharan/dcos,dcos/dcos,lingmann/dcos,GoelDeepak/dcos,dcos/dcos,asridharan/dcos,mesosphere-mergebot/dcos,GoelDeepak/dcos,mnaboka/dcos,mnaboka/dcos,lingmann/dcos,mesosphere-mergebot/dcos,darkonie/dcos,asridharan/dcos,darkonie/dcos,jeid64/dcos,mellenburg/dcos,GoelDeepak/dcos,asridharan/dcos,mesosphere-mergebot/mergebot-test-dcos,mesosphere-mergebot/mergebot-test-dcos,jeid64/dcos,mesosphere-mergebot/mergebot-test-dcos,branden/dcos,amitaekbote/dcos,GoelDeepak/dcos,mesosphere-mergebot/mergebot-test-dcos,kensipe/dcos,mellenburg/dcos,vishnu2kmohan/dcos,surdy/dcos,mnaboka/dcos,dcos/dcos,jeid64/dcos,vishnu2kmohan/dcos