Ratsnest gets confused after changing connections in one view that are routed in another view

What steps will reproduce the problem?
1. make a new sketch and put in a part. 
2. wire it up in breadboardview and route the traces from the ratsnest in pcb 
view
3. if you now go back to breadboard and change the connections and go back to 
pcb-view and delete the routed traces, the upcoming ratsnest isn't correct.

the only way to solve this issue is to delete the ratsnest (rightclick on 
ratsnest and delete) which will delete all connections in all view. or delete 
the part and put in a new one. 

What is the expected output? What do you see instead?
the Ratsnest should be right after deleting the "old" pcb-traces.

What version of Fritzing are you using? On what operating system?
- win7 64bit nightly 0.8.7(1)-build

Original issue reported on code.google.com by bluearc....@gmail.com on 27 Jan 2014 at 2:15

buixuanan / fritzing

Ratsnest gets confused after changing connections in one view that are routed in another view #2901