I have a free developer instance and a vendor instance.
I want to export my app in XML format from the free dev instance into the vendor instance. I wanna review and make changes to the application from the vendor instance and then export it back to the free dev instance. and then repeat the cycle. but it doesnt let me publish the app since its a free dev instance and the Update set only contains the new updates to the app.
Any suggestions or solutions for this issue
