Update `auto_unfold_foreign_scenes` description

doc/classes/EditorSettings.xml

@@ -988,7 +988,8 @@
 			If [code]true[/code], the Scene dock will display buttons to quickly add a root node to a newly created scene.
 		</member>
 		<member name="interface/inspector/auto_unfold_foreign_scenes" type="bool" setter="" getter="">
-			If [code]true[/code], automatically expands property groups in the Inspector dock when opening a scene that hasn't been opened previously. If [code]false[/code], all groups remain collapsed by default.
+			If [code]true[/code], automatically unfolds Inspector property groups containing modified values when opening a scene for the first time. Only affects scenes without saved folding preferences and only unfolds groups with properties that have been changed from their default values.
+			[b]Note:[/b] This setting only works in specific scenarios: when opening a scene brought in from another project, or when opening a new scene that already has modified properties (e.g., from version control). Duplicated scenes are not considered foreign, so this setting will not affect them.
 		</member>
 		<member name="interface/inspector/color_picker_show_intensity" type="bool" setter="" getter="">
 			If [code]true[/code], show the intensity slider in the [ColorPicker]s opened in the editor.