added const

application/Espo/ORM/Defs/Params/RelationParam.php

@@ -107,4 +107,9 @@ class RelationParam
      * @since 9.2.5
      */
     public const ORDER = 'order';
+
+    /**
+     * @since 9.4.0
+     */
+    public const READ_ONLY = 'readOnly';
 }

application/Espo/Tools/EntityManager/Hook/Hooks/CollaboratorsUpdateHook.php

@@ -94,7 +94,7 @@ class CollaboratorsUpdateHook implements UpdateHook
                         'autocompleteOnEmpty',
                         'maxCount',
                         'inlineEditDisabled',
-                        'tooltipText'
+                        'tooltipText',
                     ]
                 ],
             ],
@@ -104,6 +104,7 @@ class CollaboratorsUpdateHook implements UpdateHook
                     'entity' => User::ENTITY_TYPE,
                     RelationParam::RELATION_NAME => self::RELATION_NAME,
                     'layoutRelationshipsDisabled' => true,
+                    RelationParam::READ_ONLY => true,
                 ],
             ],
         ]);