Update models.py

fix typo 2

Author: rw-bsi

models.py

@@ -317,7 +317,7 @@ def full_name(self):
         An Authoring Tool has at least a name; company and version are optional.
         """
 
-        full_name_without_version = f'{company_name} - {self.name}'.strip() if self.company else f'{self.name}'.strip()
+        full_name_without_version = f'{company.name} - {self.name}'.strip() if self.company else f'{self.name}'.strip()
         return f'{full_name_without_version} - {self.version}'.strip() if self.version else full_name_without_version
 
     def find_by_full_name(full_name):