Don't update entity editor when it's hidden

js/id/ui/entity_editor.js

@@ -120,6 +120,7 @@ iD.ui.EntityEditor = function(context) {
                 .entityID(id));
 
         function historyChanged() {
+            if (state === 'hide') return;
             var entity = context.hasEntity(id);
             if (!entity) return;
             entityEditor.preset(context.presets().match(entity, context.graph()));

js/id/ui/inspector.js

@@ -75,6 +75,7 @@ iD.ui.Inspector = function(context) {
     inspector.state = function(_) {
         if (!arguments.length) return state;
         state = _;
+        entityEditor.state(state);
         return inspector;
     };
 

js/id/ui/sidebar.js

@@ -28,6 +28,7 @@ iD.ui.Sidebar = function(context) {
             } else if (!current) {
                 featureListWrap.classed('inspector-hidden', false);
                 inspectorWrap.classed('inspector-hidden', true);
+                inspector.state('hide');
             }
         };
 
@@ -48,6 +49,7 @@ iD.ui.Sidebar = function(context) {
             } else if (!current) {
                 featureListWrap.classed('inspector-hidden', false);
                 inspectorWrap.classed('inspector-hidden', true);
+                inspector.state('hide');
             }
         };