F41 Xfce Mousepad launcher problems

[Robert Moskowitz]

When I go to launch a new Mousepad, it gets stuffed in a currently 
running Mousepad window rather than a new image.

Moving said window into the current workspace from where I had it. grumble.

Where is the behavior controlled?  I tend to have a dozen Mousepads open 
with some work I am doing noted (like openSSL work).  F38 Xfce did it 
right.  F41 is not and I don't see where this is controlled.

I tried launching a new Firefox instance and than created a new window 
rather than a new tab in the then current window.  So some apps get this 
as I want....

thanks