Hi full time lawyer here
Once government acquired your land title will still show the same hektar before but in your ownership section there will indicate government has acquired 1 hektar.

You can choose to ignore you still can proceed to sell this land

Or

You can go land office file a borang(which I assisted my client to do so few years back) to indicate the correct measurement.

Yes so don't worry government didn't give you free land lol

And for additional info yes, it's your duty and not the duty of government to effect the transfer