fix bug when auth token is undefined

extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-mysql/src/main/resources/org/apache/guacamole/auth/jdbc/usergroup/UserGroupMapper.xml

@@ -291,6 +291,7 @@
     <delete id="delete">
         DELETE FROM guacamole_entity
         WHERE
+            type = 'USER_GROUP'
             <choose>
                 <when test="caseSensitivity.caseSensitiveGroupNames()">
                     name = #{identifier,jdbcType=VARCHAR}
@@ -299,7 +300,6 @@
                     LOWER(name) = LOWER(#{identifier,jdbcType=VARCHAR})
                 </otherwise>
             </choose>
-            AND type = 'USER_GROUP'
     </delete>
 
     <!-- Insert single group -->

extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-mysql/src/main/resources/org/apache/guacamole/auth/jdbc/usergroup/UserGroupMemberUserGroupMapper.xml

@@ -96,7 +96,7 @@
             guacamole_entity.type = 'USER_GROUP'
             AND
             <choose>
-                <when test="caseSensitivity.caseSensitiveGroupNames()">
+                <when test="caseSensitivity.caesSensitiveGroupNames()">
                     guacamole_entity.name
                 </when>
                 <otherwise>

guacamole/src/main/frontend/src/app/storage/services/localStorageService.js

@@ -121,7 +121,7 @@ angular.module('storage').provider('localStorageService', [function localStorage
 
         // Pull and parse value from internal storage, if present
         var data = storedItems[key];
-        if (!data || data === "undefined")
+        if (data === "undefined")
             return null;
         if (data)
             return JSON.parse(data);