Settings editor - clear TOC selection when searching. Don't show 'new...

Settings editor - clear TOC selection when searching. Don't show 'new extension' button when it's filtered out.

src/vs/workbench/parts/preferences/browser/settingsEditor2.ts

@@ -898,10 +898,11 @@ export class SettingsEditor2 extends BaseEditor {
 				this.toggleSearchMode();
 				this.settingsTree.setInput(this.searchResultModel.root);
 			} else {
+				this.tocTreeModel.update();
 				this.searchResultModel.setResult(type, result);
 			}
 
-			this.tocTreeModel.update();
+			this.tocTree.setSelection([]);
 			expandAll(this.tocTree);
 
 			return this.renderTree();

src/vs/workbench/parts/preferences/browser/settingsTree.ts

@@ -1188,6 +1188,12 @@ export class SettingsTreeFilter implements IFilter {
 			return element.children.some(child => this.isVisible(tree, child));
 		}
 
+		if (element instanceof SettingsTreeNewExtensionsElement) {
+			if ((this.viewState.tagFilters && this.viewState.tagFilters.size) || this.viewState.filterToCategory) {
+				return false;
+			}
+		}
+
 		return true;
 	}