Two loaded libraries can't share components from a third library

This bug is a bit complicated to explain.

Suppose I have three libraries I created, LibA.circ and LibB.circ. LibA and LibB are standard circuits, while LibC contains some custom components. LibA and LibB each use some of the components in LibC.

Now suppose I want to create a master circuit that uses circuits from the LibA and LibB libraries.

When I load the LibA library, it loads with no problem. But when I attempt to load the LibB library, I get an error message complaining about any LibC components shared between LibA and LibC.

Apparently Logisim-Evolution doesn't allow adding two user libraries that share components from a third user library.

The same thing happens if I load LibB first, followed by LibA.

Note that L-E doesn't complain if the LibA and LibB libraries share components from L-E's built-in libraries.

But I can't figure out why this should be a problem. The shared LibC components are the same in LibA and LibB, so there's only one set of LibC components. So what's the problem?

My workaround was painful. I had to create empty circuits in my master circuit that matched every circuit in my LibA and LibB libraries, then copy/paste each of those circuits from LibA and LibB into the corresponding circuit in the master circuit. Now everything worked as expected; the new circuits could use components from LibC without any problem.

Of course, this has one significant side effect: the master circuit file now contained all of the circuits from the LibA and LibB libraries, so I could no longer manage the LibA and LibB circuits as their own files. Not how I wanted to manage my circuits, especially ones with many subcircuits.

I don't think what I'm trying to do here is unusual, especially with complex projects that contain multiple levels of circuits, each with their own components and subcircuits.