Fix user comparator.

wise-webapp/src/main/java/com/wisemapping/model/Collaborator.java

@@ -76,4 +76,24 @@ public class Collaborator  implements Serializable {
     public void setCreationDate(Calendar creationDate) {
         this.creationDate = creationDate;
     }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+
+        Collaborator that = (Collaborator) o;
+
+        if (id != that.id) return false;
+        if (email != null ? !email.equals(that.email) : that.email != null) return false;
+
+        return true;
+    }
+
+    @Override
+    public int hashCode() {
+        int result = (int) (id ^ (id >>> 32));
+        result = 31 * result + (email != null ? email.hashCode() : 0);
+        return result;
+    }
 }

wise-webapp/src/main/java/com/wisemapping/model/User.java

@@ -106,30 +106,6 @@ public class User
         this.allowSendEmail = allowSendEmail;
     }
 
-    public boolean equals(Object o) {
-        if (this == o)
-            return true;
-        if (o == null || !User.class.getClass().isInstance(o))
-            return false;
-
-        final User user = (User) o;
-
-        final String email = getEmail();
-        if (email != null ? !email.equals(user.getEmail()) : user.getEmail() != null) return false;
-        if (firstname != null ? !firstname.equals(user.firstname) : user.firstname != null) return false;
-        return !(lastname != null ? !lastname.equals(user.lastname) : user.lastname != null);
-    }
-
-
-    public int hashCode() {
-        int result;
-        result = (firstname != null ? firstname.hashCode() : 0);
-        result = 29 * result + (lastname != null ? lastname.hashCode() : 0);
-        result = 29 * result + (password != null ? password.hashCode() : 0);
-        result = 29 * result + (getEmail() != null ? getEmail().hashCode() : 0);
-        return result;
-    }
-
     @Nullable
     public String getLocale() {
         return locale;

wise-webapp/src/main/java/com/wisemapping/service/LockManagerImpl.java

@@ -130,7 +130,7 @@ class LockManagerImpl implements LockManager {
             // Update timeout only...
             logger.debug("Update timestamp:" + mindmap.getId());
             updateExpirationTimeout(mindmap, user);
-            result.setSession(session);
+           // result.setSession(session);
         } else {
             logger.debug("Lock map id:" + mindmap.getId());
             result = new LockInfo(user, mindmap, session);