Fix: Hang in schema change handler cause by server error
Fix: Hang in schema change handler cause by server error

mikefero/cpp-driver,datastax/cpp-driver,mikefero/cpp-driver,datastax/cpp-driver,mikefero/cpp-driver,hpcc-systems/cpp-driver,datastax/cpp-driver,mikefero/cpp-driver,hpcc-systems/cpp-driver,mikefero/cpp-driver,hpcc-systems/cpp-driver,hpcc-systems/cpp-driver,datastax/cpp-driver