IVE: interface renamed

The "parse" interface (between the functions "binary expression 0" and "binary expression 1") has been renamed automatically to "binary expression 1 type parse". This was NOT expected!
This is problematic because it's a PI and RI that come from the function type (both binary expression 0 and 1 are instances of 2 different types)

interfaceview.xml

It's weird because it should never be possible to rename an interface from an instance of a function type, and yet it is possible for the "parse" pi:

Oh and after a renamed the PI back to "parse", saved the model, and reopened, it renamed it again (but only on one side this time)

Why do some connections have a name attribute but not all of them?