ignore blank Pointer items on save

Ticket

+commit
 

pattern: people often add a new item to Pointers just to add one, so the first one is saved as blank

 

Actually, it's more of a rendering issue, caused by extra newlines.  Quickest solution was to fix the rendering (just added a "+" to the regexp)

 

Edit and save this:

 

replaced this old solution:

If there are Pointer items that are blank, don't even save them into the database.