How to work on KDevelop with KDevelop

Hello Developers!

I currently have some free time and wanted to sort out some bugs in 
KDevelop that I encountered in the past...

This I would like to do within KDevelop itself, however I'm not sure 
what the best workflow is there. The issue is that I cannot launch 
KDevelop from KDevelop, because it only allows a single instance running 
for a given user, and always closing the development instance to check 
changes in the freshly built one is a bit unpleasant.

Are there some developers who have a similar workflow and have a 
solution for this issue?

Best regards,
Benjamin