Index: applications/editors/josm/plugins/utilsplugin2/src/org/openstreetmap/josm/plugins/utilsplugin2/selection/SelectAllInsideAction.java
===================================================================
--- applications/editors/josm/plugins/utilsplugin2/src/org/openstreetmap/josm/plugins/utilsplugin2/selection/SelectAllInsideAction.java	(revision 33201)
+++ applications/editors/josm/plugins/utilsplugin2/src/org/openstreetmap/josm/plugins/utilsplugin2/selection/SelectAllInsideAction.java	(revision 33212)
@@ -16,4 +16,5 @@
 import org.openstreetmap.josm.gui.Notification;
 import org.openstreetmap.josm.tools.Shortcut;
+import org.openstreetmap.josm.tools.SubclassFilteredCollection;
 
 /**
@@ -36,4 +37,5 @@
         if (!insideSelected.isEmpty()) {
             ds.addSelected(insideSelected);
+            ds.setSelected(new SubclassFilteredCollection<>(ds.getSelected(), OsmPrimitive::isSelectable));
         } else {
             new Notification(