patch12 - use only terminal nodes as src's

matlab/+Smooth/+Patch/patch12.m

@@ -62,7 +62,9 @@ end
 function qSrc=getPatchCandidates(conn)
 
 cmd=[' select min(cost),cellID_src,cellID_dst from tblDistCC inner join '... 
-        ' tblCells on cellID_dst=cellID ' ...
-        ' group by trackID,cellID_src'];
+             ' (select cellID as cellID1,trackID as trackID_src,max(time) as '...
+             ' tmax from tblCells '...
+             ' group by trackID) on tblDistCC.cellID_src=cellID1 '...
+             ' group by cellID_src '];
 qSrc=fetch(conn,cmd);