### Reproduction

- Precondition: Mails can be sent
- add a work package comment
- use the `##ticketnumber` macro in the **comment** Begin of the insertion
- refer to a WP in a private project
- maybe: refer to a WP you are not even able to receive yourself
- make sure that a person, that is privileged to see the refered WP, also receives a mail
- save the commentEnd of the insertion

### Expected

- Begin of the insertionin HTML mails markupEnd of the insertion Begin of the deletion The macro (and other kinds of markup)End of the deletion is resolved properly Begin of the insertion
- a person that is allowed to see a refered WP does not see `##XXX`, but the resolved macroEnd of the insertion (e.g. Begin of the insertion`#XXX: A work package`)
- a person that is not allowed to see a refered WP only sees `##XXX`End of the insertion Begin of the deletion `#Bug 123: Some subject`)End of the deletion

### Actual

- Begin of the insertionmarkupEnd of the insertion Begin of the deletion The macroEnd of the deletion is Begin of the insertionproperly resolved (in HTML mails): **good**
- everyone has unresolved ticket references (`##XXX`)End of the insertion Begin of the deletion not resolved, the textEnd of the deletion in Begin of the insertiontheirEnd of the insertion Begin of the deletion theEnd of the deletion mail Begin of the insertiontexts: **bad**End of the insertion Begin of the deletion reads plainly `##ticketnumber`End of the deletion