Exception when reading file with dates set by the camera to Unknown about exiflibrary HOT 3 CLOSED

I think I might have been wrong about it working in a previous version. 
Unfortunately I can't test it 

I suggest the following change to ExifBitConverter.ToDateTime. After the line:
            string[] parts = str.Split(new char[] { ':', ' ' });
insert:
            if (int.Parse(parts[0]) + int.Parse(parts[1]) + int.Parse(parts[2]) == 0)
                //A date with each part set to zero is used on at least one camera to indicate an unknown date.
                //DateTime has no such concept, and its earliest possible date is 0001/01/01.
                //So we set the date to that value rather than let DateTime throw an exception
            {
                parts[0] = "1"; parts[1] = "1"; parts[2] = "1";
            }

This issue was closed by revision r92.