src/vs/workbench/contrib/tasks/browser/abstractTaskService.ts/AbstractTaskService/_findWorkspaceTasksInGroup
class AbstractTaskService:	private async _findWorkspaceTasksInGroup(group: TaskGroup, isDefault: boolean): Promise<(ConfiguringTask | Task)[]> {
		return this._findWorkspaceTasks((task) => {
			const taskGroup = task.configurationProperties.group;
			if (taskGroup && typeof taskGroup !== 'string') {
				return (taskGroup._id === group._id && (!isDefault || !!taskGroup.isDefault));
			}
			return false;
		});
	}