Fix for a channel sub type being found.
At times the code would look in a dbd for a 'max' and fail with a not found error. This was because it contained 'max,s-trend' instead of 'max'. Update the DataBuffer to remove ',' + ctype (ie ',s-trend', ',m-trend') from the mod field.
Again, I do not know if this breaks other things. I'm using this to point out what I have found.