support domains which send several tls records, but print warning

mtprotoproxy.py

@@ -1925,6 +1925,16 @@ async def get_encrypted_cert(host, port, server_name):
     if record3_type != 23:
         return b""
 
+    if len(record3) < MIN_CERT_LEN:
+        record4_type, record4 = await get_tls_record(reader)
+        if record4_type != 23:
+            return b""
+        msg = ("The MASK_HOST %s sent some TLS record before certificate record, this makes the " +
+               "proxy more detectable") % config.MASK_HOST
+        print_err(msg)
+
+        return record4
+
     return record3