print-dup breaks socket repl

Evaluating this over socket repl fails: ``` (binding [*print-dup* true] (prn {:a 1})) ``` with ``` [ Clojure Sublimed ] SND {"id" 12, "op" "eval", "ns" "user", "print_quota" 4096, "code" "(binding [*print-dup* true] (prn {:a 1}))", "line" 1, "column" 0} [ Clojure Sublimed ] RCV #=(clojure.lang.PersistentTreeMap/create {"form" "(binding [*print-dup* true]\n (prn {:a 1}))", "from_column" #=(java.lang.Integer. "0"), "from_line" #=(java.lang.Integer. "1"), "id" 12, "idx" 0, "tag" "out", "to_column" #=(java.lang.Integer. "16"), "to_line" #=(java.lang.Integer. "2"), "val" "#=(clojure.lang.PersistentArrayMap/create {:a 1})\n"}) Exception in thread Thread-9: Traceback (most recent call last): File "./python3.8/threading.py", line 932, in _bootstrap_inner File "./python3.8/threading.py", line 870, in run File "/Users/tonsky/Library/Application Support/Sublime Text/Packages/Clojure Sublimed/cs_conn_socket_repl.py", line 57, in read_loop self.handle_msg(msg) File "/Users/tonsky/Library/Application Support/Sublime Text/Packages/Clojure Sublimed/cs_conn_socket_repl.py", line 191, in handle_msg self.handle_value(msg) \ File "/Users/tonsky/Library/Application Support/Sublime Text/Packages/Clojure Sublimed/cs_conn_socket_repl.py", line 142, in handle_value if 'ret' == msg['tag']: KeyError: 'tag' ```