I've created a list using the SharePoint (MOSS 2007) Issue Tracking List. A "Comments" field is automatically created in this list. The Comments column has extra functionality that provides a sort of history/log whenever an edit is made to a list item. Unfortunately, a comment entry is created even when an insignificant edit is made. For example, I could edit the title of the list item and leave the comment field blank. This results in a blank entry being saved for the Comments field (except the date/time of the edit and the person making it). If there are several edits made (with the Comments field left empty), then several blank entries appear to be stored in the data (for the Comment field). Is there a way to not save a comment entry if it's blank?