trivial: Optimized FormBaseAuthInterceptor to ignore empty login tokens
diff --git a/src/main/java/org/apache/sling/testing/clients/interceptors/FormBasedAuthInterceptor.java b/src/main/java/org/apache/sling/testing/clients/interceptors/FormBasedAuthInterceptor.java
index 0f78425..ca461e6 100644
--- a/src/main/java/org/apache/sling/testing/clients/interceptors/FormBasedAuthInterceptor.java
+++ b/src/main/java/org/apache/sling/testing/clients/interceptors/FormBasedAuthInterceptor.java
@@ -85,7 +85,7 @@
     /** Get login token cookie or null if not found */
     private Cookie getLoginCookie(HttpContext context, String loginTokenName) {
         for (Cookie cookie : HttpClientContext.adapt(context).getCookieStore().getCookies()) {
-            if (cookie.getName().equalsIgnoreCase(loginTokenName)) {
+            if (cookie.getName().equalsIgnoreCase(loginTokenName) && !cookie.getValue().isEmpty()) {
                 return cookie;
             }
         }