mod_invites_page: Fix templates including stray inviter name (thanks Menel) The util.interpolation syntax `{var?placeholder}` appears to have been intended as an if-not, but this syntax will always return either the variable or the placeholder-template.

---
labels:
- Stage-Alpha
rockspec:
  dependencies:
  - mod_sasl2
summary: "XEP-0386: Bind 2.0"
---

Experimental early implementation of [XEP-0386: Bind 2.0] for use with
[mod_sasl2].