small fix

iCemarose/Class/UI/Brand/KWMSearchBrandVC.m

@@ -315,11 +315,13 @@ static NSString *identify = @"KWMSearchBrandsCell";
 //        if(self.dataArray){ //如果已经从缓存拿到数据了。
 //            return;
 //        }
+        if(result.brands){
             NSArray  *indexArray= [[result.brands rx_filterWithBlock:^BOOL(id each) {
                 return each && each != [NSNull null];
             }] arrayWithPinYinFirstLetterFormat];
             _dataArray =[NSMutableArray arrayWithArray:indexArray];
             [weakSelf.tbvSearchBrand reloadData];
+        }
     };
     void(^cacheCallback)(KWMBrandsResult *) = ^(KWMBrandsResult *result){
 //        if([weakSelf hasCemaroseError:result]){