fix: XLS, XLSX, CSV file upload lost data (#2150)

Author: shaohuzhang1

apps/common/handle/impl/csv_split_handle.py

@@ -53,7 +53,7 @@ def handle(self, file, pattern_list: List, with_filter: bool, limit: int, get_bu
                         result_item_content += next_md_content
                     else:
                         paragraphs.append({'content': result_item_content, 'title': ''})
-                        result_item_content = ''
+                        result_item_content = next_md_content
             if len(result_item_content) > 0:
                 paragraphs.append({'content': result_item_content, 'title': ''})
             return result

apps/common/handle/impl/xls_split_handle.py

@@ -48,7 +48,7 @@ def handle_sheet(file_name, sheet, limit: int):
                 result_item_content += next_md_content
             else:
                 paragraphs.append({'content': result_item_content, 'title': ''})
-                result_item_content = ''
+                result_item_content = next_md_content
     if len(result_item_content) > 0:
         paragraphs.append({'content': result_item_content, 'title': ''})
     return result

apps/common/handle/impl/xlsx_split_handle.py

@@ -54,7 +54,7 @@ def handle_sheet(file_name, sheet, image_dict, limit: int):
                 result_item_content += next_md_content
             else:
                 paragraphs.append({'content': result_item_content, 'title': ''})
-                result_item_content = ''
+                result_item_content = next_md_content
     if len(result_item_content) > 0:
         paragraphs.append({'content': result_item_content, 'title': ''})
     return result