Assuming the property appreciated in value, wouldn't the overall taxable income be the same?  Changing the business percentage for 4797 would also change the personal percentage on 8949.

With that being said, there is an IRS Publication that seems to indicate that real estate should all be lumped as one item on 4797, reporting 100% of the gain/loss, rather than splitting it between 4797 and 8949 (non-real estate should be split though).