[[ Bug 20672 ]] Update property inspector once for multiple objects

Previously `idePropertyChanged` would be sent for each of the seected objects
causing the property inspector to be updated for each. This patch will ensure
it is only updated once for multiple objects.

Author: montegoulding

Toolset/palettes/inspector/revinspectortemplate.livecodescript

@@ -122,7 +122,15 @@ on lockInspector
    end if
 end lockInspector
 
+local sPropertyChangedMsg
+
 on idePropertyChanged
+   cancel sPropertyChangedMsg
+   send "__IdePropertyChanged" to me in 200 milliseconds
+   put the result into sPropertyChangedMsg
+end idePropertyChanged
+
+on __IdePropertyChanged
    lock screen
    # Check if the object 'types' have been changed via PI
    local tNewTypes
@@ -135,7 +143,7 @@ on idePropertyChanged
       inspectorTitleUpdate
    end if
    unlock screen
-end idePropertyChanged
+end __IdePropertyChanged
 
 on inspectorTreeMenuDisplay
    local tObjects, tStack, tDefaultStack

notes/bugfix-20672.md

@@ -0,0 +1 @@
+# Fix very slow arrow key nudge of multiple objects