Hi Saravanakumar,
That functionality was removed as it was a bug so there is no way to make it save without changing the status. The log comment form should be used for logging comments, not the update status form. Additionally, in 14.1.02, when you attempt to do that, there is a message thrown that says the status was not changed. If you have 14.1.02, but do not have the message showing when you try to save the update status form without changing the status, then its possible you have the form customized, and as such, you are not using the new form delivered with 14.1.02. If you disable your custom form and test it out, you will see the message like this:
If you are not seeing this message on your 14.1.02 system, you may not have cleared your browser cache after applying 14.1.02, OR you have the form customized, and didnt rebuild your custom forms after applying 14.1.02.
Hope this helps,
Jon I.