Quick Modeling Questions

Hi WSO. Follow up to my previous post. Have 2 simple modeling question if anyone can spare a few minutes to answer.

1) If a company restated historical period financials (for example, updated 2Q15 in 2Q16) but it hasn’t been a full year (4Q16 hasn’t been released), how do you handle the 4Q15 and FY15 statements that haven’t been restated? Do you leave as the company previously stated or do you estimate the accounting impact and adjust your model?

2) Do you check the YTD versus each previously stated quarter to determine if they restated numbers in a prior quarter without disclosing? How do you adjust your model if you find a line item was restated, but you don't know what quarter(s) were actually impacted?

Thanks in advance!