Workflows problem with Documents module "has changed to" filter condition.

Hi,
If I create an workflow and set the condition to "has changed to" and I reopen to edit it, the condition is set to "is". But in the database table I see "has changed to".
If I set other conditions like "contains" or "has changed from" and I reopen it, I see the correct condition.

Have any one a solution for this issue?

Regards, Daniel