[Devtools] Fix network grouping experiment

third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js

Index: third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
diff --git a/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js b/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
index 9b9910b5b3e9d534b1fccb11d2f728ab8d871daa..c641e6ee02faf27f46ae7f0481d817a82097a850 100644
--- a/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
+++ b/third_party/WebKit/Source/devtools/front_end/network/NetworkLogView.js
@@ -843,10 +843,10 @@ Network.NetworkLogView = class extends UI.VBox {
       var request = node.request();
       this._timeCalculator.updateBoundaries(request);
       this._durationCalculator.updateBoundaries(request);
-      if (node[Network.NetworkLogView._isFilteredOutSymbol] === isFilteredOut)
+      var newParent = this._parentNodeForInsert(node);
+      if (node[Network.NetworkLogView._isFilteredOutSymbol] === isFilteredOut && node.parent === newParent)
         continue;
       node[Network.NetworkLogView._isFilteredOutSymbol] = isFilteredOut;
-      var newParent = this._parentNodeForInsert(node);
       var removeFromParent = node.parent && (isFilteredOut || node.parent !== newParent);
       if (removeFromParent) {
         var parent = node.parent;