DiffTool: removePropertyList function should be working same for both ERP5...

DiffTool: removePropertyList function should be working same for both ERP5 object and dictionaries of ERP5 object properties

Before we use to neglect removing some properties from ERP5 object properties' dict, which led to error in case of use
of DiffTool for Historical Revisions dict. Thus, its important for removeProperties function to act similar in both
cases.

Also, add `base_data` in attribute_set to be removed because `data`, `base_data` and `text_content` are same

product/ERP5/bootstrap/erp5_core/DocumentTemplateItem/portal_components/document.erp5.DiffTool.py

@@ -232,11 +232,14 @@ class PortalPatch:
     """
     if isinstance(obj, dict):
       obj_dict = obj.copy()
-      export = False
+      # Try to get the classname and module name from the dict
+      class_name = obj.get('portal_type', '')
+      module_name = obj.get('__module__', '')
     else:
       obj._p_activate()
       klass = obj.__class__
-      classname = klass.__name__
+      class_name = klass.__name__
+      module_name = klass.__module__
       obj_dict = obj.showDict().copy()
 
     attribute_set = {'_dav_writelocks', '_filepath', '_owner', '_related_index',
@@ -244,7 +247,7 @@ class PortalPatch:
                      '__ac_local_roles__', '__ac_local_roles_group_id_dict__',
                      'workflow_history', 'subject_set_uid_dict', 'security_uid_dict',
                      'filter_dict', '_max_uid', 'isIndexable', 'id', 'modification_date',
-                     'data'}
+                     'data', 'base_data'}
 
     # Update the list of properties which were explicitly given in parameters
     if property_list:
@@ -264,13 +267,13 @@ class PortalPatch:
         attribute_set.update(('func_code', 'func_defaults', '_code',
                          '_lazy_compilation', 'Python_magic', 'errors',
                          'warnings', '_proxy_roles'))
-      elif classname in ('File', 'Image'):
+      elif class_name in ('File', 'Image'):
         attribute_set.update(('_EtagSupport__etag', 'size'))
-      elif classname == 'SQL' and klass.__module__ == 'Products.ZSQLMethods.SQL':
+      elif class_name == 'SQL' and module_name == 'Products.ZSQLMethods.SQL':
         attribute_set.update(('_arg', 'template'))
       elif interfaces.IIdGenerator.providedBy(obj):
         attribute_set.update(('last_max_id_dict', 'last_id_dict'))
-      elif classname == 'Types Tool' and klass.__module__ == 'erp5.portal_type':
+      elif class_name == 'Types Tool' and module_name == 'erp5.portal_type':
         attribute_set.add('type_provider_list')
 
     for attribute in list(obj_dict.keys()):