src/vs/workbench/contrib/extensions/browser/extensionsActions.ts/ExtensionStatusLabelAction/extension
class ExtensionStatusLabelAction:	set extension(extension: IExtension | null) {
		if (!(this._extension && extension && areSameExtensions(this._extension.identifier, extension.identifier))) {
			// Different extension. Reset
			this.initialStatus = null;
			this.status = null;
			this.enablementState = null;
		}
		this._extension = extension;
		this.update();
	}