org discovery on register

apps/login/src/app/api/loginname/route.ts

@@ -117,6 +117,7 @@ export async function POST(request: NextRequest) {
             const matched = ORG_SUFFIX_REGEX.exec(loginName);
             const suffix = matched?.[1] ?? "";
 
+            // this just returns orgs where the suffix is set as primary domain
             const orgs = await getOrgsByDomainSuffix(suffix);
             orgToRegisterOn =
               orgs.result && orgs.result.length === 1

apps/login/src/lib/zitadel.ts

@@ -295,7 +295,16 @@ export async function listUsers({
 
 export async function getOrgsByDomainSuffix(domain: string) {
   return orgService.listOrganizations(
-    { queries: [{ query: { case: "domainQuery", value: { domain } } }] },
+    {
+      queries: [
+        {
+          query: {
+            case: "domainQuery",
+            value: { domain, method: TextQueryMethod.EQUALS },
+          },
+        },
+      ],
+    },
     {},
   );
 }