emits wrong status on startup

when the keyboard starts (e.g. by running _build/src/squeekboard) it emits

‣ Type=method_return  Endian=l  Flags=1  Version=1  Priority=0 Cookie=33  ReplyCookie=265
  Sender=:1.137  Destination=:1.14
  UniqueName=:1.137
  MESSAGE "a{sv}" {
          ARRAY "{sv}" {
                  DICT_ENTRY "sv" {
                          STRING "Visible";
                          VARIANT "b" {
                                  BOOLEAN false;
                          };
                  };
          };
  };

even when it's immediately shown. this makes the first press on the keyboard button in the shell fail (since the shell must assume the keyboard is not visible).