🚀 go-pugleaf

I need some help using SuperPaint 2.0. A colleague of mine has 
discovered following behavior when he is drawing circuit diagrams.

He has built a library of different symbol which he copies and 
paste in the circuit diagram he is drawing, he then connects the 
symbols using the line drawing tool, ex.

     |   	  Connecting line
     |		|
     |		|
   -----	|
   |   |	|
   |   |	| Library symbol
   |   |	|
   -----	|
     |		|
     |		|
     |    	  Connecting line

When he has completed the diagram he wants to change the size of 
the drawing (all symbols, lines etc. are grouped together into 
one object) using the "Change size" command, he selects 80% both 
horizontally and vertically. After the change the drawing looks 
like this

	  |       Connecting line
	  
     |		|
     |		|
   -----	|
   |   |	|
   |   |	| Library symbol
   |   |	|
   -----	|
     |		|
     |		|
     
       	  |       Connecting line

Why aren't the lines connected anymore ? 

I would appreciate an answer and perhaps a way to work around 
this problem ?

			jem