quote_add_symbols is not supporting extended session

[brandonros]

regular

~m~152~m~{"m":"quote_add_symbols","p":["qs_6NGU6pXLpVVI","={\"adjustment\":\"splits\",\"currency-id\":\"USD\",\"session\":\"regular\",\"symbol\":\"BATS:SPY\"}"]}

extended

~m~153~m~{"m":"quote_add_symbols","p":["qs_6NGU6pXLpVVI","={\"adjustment\":\"splits\",\"currency-id\":\"USD\",\"session\":\"extended\",\"symbol\":\"AMEX:SPY\"}"]}