getBaseObjectConfig 内判断语句没有规避所有null情况
Created by: endlesstravel
return configs && configs.length > 0 ? configs[0].metadata : null;当变量 configs 为 configs = [ null, ...... ]; 时，会抛出异常
https://github.com/steedos/steedos-platform/blob/46068e8f308731ab5dce08dbe6b1e1adcbcc59ed/services/service- metadata-objects/src/objects/index.ts#L26