bugfix 【埋点-IOS】首页icon-品类聚合页面浏览，referrer_tab_name字段显示为空，应该显示来源页面Tab名称；

GMFlutterSDK/Classes/GMFlutterBaseContainerViewController.m

@@ -30,10 +30,8 @@
 
 /// 防止ReferrerTabName被覆盖掉
 - (void)initReferrerTabName {
-    - (void)initReferrerTabName {
-        if (!self.referrerTabName.isNonEmpty) {
-            [super initReferrerTabName];
-        }
+    if (!self.referrerTabName.isNonEmpty) {
+        [super initReferrerTabName];
     }
 }