fix: LDAP users not merging by email during sync (#41279)

Signed-off-by: Abhinav Kumar <abhinav@avitechlab.com>

Author: abhinavkrin

.changeset/ldap-merge-email-lookup.md

@@ -0,0 +1,6 @@
+---
+'@rocket.chat/models': patch
+'@rocket.chat/meteor': patch
+---
+
+Fixes LDAP sync failing to merge an existing user matched by email, which caused a `Username already exists` error when the user's username differed from the directory.

packages/models/src/models/Users.ts

@@ -2264,7 +2264,7 @@ export class UsersRaw extends BaseRaw<IUser, DefaultFields<IUser>> implements IU
 
 	findOneWithoutLDAPByEmailAddress(emailAddress: string, options?: FindOptions<IUser>) {
 		const query = {
-			'email.address': emailAddress.trim().toLowerCase(),
+			'emails.address': emailAddress.trim().toLowerCase(),
 			'services.ldap': {
 				$exists: false,
 			},