fix bug cookie get mainUserId

pcloud-common/src/main/java/com/pcloud/common/utils/cookie/Cookie.java

@@ -255,7 +255,7 @@ public class Cookie {
                 String[] user = userInfoArry[i].split("=");
                 String mainUserId = user[user.length - 1];
                 userInfos.put("mainUserId", StringUtil.isEmpty(mainUserId) || "undefined".equalsIgnoreCase(mainUserId)
-                        || "null".equalsIgnoreCase(mainUserId) ? null : NumberUtil.toLong(mainUserId));
+                        || "null".equalsIgnoreCase(mainUserId) ? null : (!mainUserId.equals("-1") ? NumberUtil.toLong(mainUserId) : -1));
             }
         }
         return userInfos;