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### Description

The docs for `set_contact_alias()` says:

**The new contact URI is immediately visible to other modules** in the way the fix_nated_contact() does it.

I don't know exactly what is meant by the last part of that sentence as that isn't documented, but the first part certainly doesn't hold:

The following snippet: ``` xlog("L_INFO", " Received Contact: $ct"); if (set_contact_alias()) { xlog("L_INFO", " Aliassed Contact: $ct"); } ```

Causes these log entries: ``` 2022-07-26T15:41:57.351148+02:00 proxydev001 prx1[12116]: INFO: Received Contact: sip:sipp@unknowndomain;transport=udp 2022-07-26T15:41:57.351148+02:00 proxydev001 prx1[12116]: INFO: Aliassed Contact: sip:sipp@unknowndomain;transport=udp ```

Which clearly shows that the changed uri is **not visible** to the `pv` module (which exports `$ct`).