结论
=======
如果开启了选项:
“Require documents to be checked out before they can be edited”
那么这是一个By-Design.
原因
=======
The 'alert on new item' option failed, because the user with the alert simply cannot see that new draft document as and when it is created because it is checked out to the person who created it in the very first instance that the document is created.
即:
用户无法看到draft version的文档, 因为文档在最初添加的时候, 被设置为由添加文档的用户checkout.
被checkout的草稿版的文档, 其他用户是没有权限查看的.
这就是新创建的文档, 用户无法收到alert邮件的根本原因.
事实上, 在ULS日志中, 可以看到如下面的日志信息:
| PermissionMask check failed. asking for 0x00000055, have 0x00000000 |
| PermissionMask check failed. asking for 0x00000041, have 0x00000000 |
| Alertsjob results for immediate delivery: XX prematches, XX passed filtering, XX of XX passed security trimming, X final after rollup |
参考资料: