SharePoint Designer does it again

Did you know that when you're working on custom Edit form and add an extra field via the Columns command, SharePoint Designer will sometimes add the field in Insert mode instead of Update mode?  Yes, it will.  Sometimes.  The binding portion of the field should look like this:

__designer:bind="{ddwrt:DataBind('u',concat('ff68',$Pos),'Value','ValueChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@Egg_x0020_Prices)}"

...but instead, it looks like this:

 __designer:bind="{ddwrt:DataBind('i',concat('ff68',$Pos),'Value','ValueChanged','ID',ddwrt:EscapeDelims(string(@ID)),'@Egg_x0020_Prices')}"

That little "i" will make all the difference in the world.  You'll chase that form all over town, wondering why it's not showing the current price of eggs in the country of your choice, because it's certainly listed correctly in the List Item... and finally you'll flip that little letter from "i" to "u" and feel really silly for wasting all that time on something so small.

...or so I've read.  You know, about people who had that happen to them.  Certainly not me.