[Fix] Fix set_addr validation to prevent malformed addresses

The set_addr function now properly checks that both addr.user and addr.domain
are non-empty strings before constructing addr.addr and addr.raw. This prevents
creating malformed addresses like '@domain.com' when addr.user is empty, and
ensures consistent state when addr.domain is empty.

diff --git a/src/plugins/lua/aliases.lua b/src/plugins/lua/aliases.lua
index ed665c2a48e634245e7e63584cd8cd2e8551197f..c65e72962b2952850ced1c003d9cab5dea3b65dd 100644 (file)
--- a/src/plugins/lua/aliases.lua
+++ b/src/plugins/lua/aliases.lua
@@ -297,8 +297,8 @@ local function set_addr(addr, new_user, new_domain)
     addr.domain = new_domain
   end
 
-  -- Only update if we have both user and domain
-  if addr.user and addr.domain and addr.domain ~= '' then
+  -- Only update if we have both user and domain as non-empty strings
+  if addr.user and addr.user ~= '' and addr.domain and addr.domain ~= '' then
     addr.addr = string.format('%s@%s', addr.user, addr.domain)
 
     if addr.name and #addr.name > 0 then