Refactor to keep plugin_auth_string

changelogs/fragments/lie_fix_plugin_hash_string_return.yml

@@ -1,3 +1,3 @@
 ---
 bugfixes:
-  - mysql_info - Fix ``users_info`` filter output variable for hashed password to use ``plugin_hash_string`` instead of ``plugin_auth_string`` (https://github.com/ansible-collections/community.mysql/pull/629).
+  - mysql_info - Add ``plugin_hash_string`` to ``users_info`` filter's output. The existing ``plugin_auth_string`` contained the hashed password and thus is missleading, it will be removed from community.mysql 4.0.0. (https://github.com/ansible-collections/community.mysql/pull/629).

plugins/module_utils/user.py

@@ -118,11 +118,21 @@ def get_existing_authentication(cursor, user, host):
     if isinstance(rows, dict):
         rows = list(rows.values())
 
+    # 'plugin_auth_string' contains the hash string. Must be removed in c.mysql 4.0
+    # See https://github.com/ansible-collections/community.mysql/pull/629
     if isinstance(rows[0], tuple):
-        return {'plugin': rows[0][0], 'plugin_hash_string': rows[0][1]}
+        return {'plugin': rows[0][0],
+                'plugin_auth_string': rows[0][1],
+                'plugin_hash_string': rows[0][1]
+        }
 
+    # 'plugin_auth_string' contains the hash string. Must be removed in c.mysql 4.0
+    # See https://github.com/ansible-collections/community.mysql/pull/629
     if isinstance(rows[0], dict):
-        return {'plugin': rows[0].get('plugin'), 'plugin_hash_string': rows[0].get('auth')}
+        return {'plugin': rows[0].get('plugin'),
+                'plugin_auth_string': rows[0].get('auth'),
+                'plugin_hash_string': rows[0].get('auth')
+        }
     return None