Label of a Vertex edge changes when the target item is inside a group or not

[lolive]

I have a TS function that labels some Vertex edges between green and blue Vertex nodes.
When blue items are grouped, the label of the links are the name of my TS function:

When I ungroup those blue items (by hand), the label of the links are the one I really programmed in my TS (in this example, I coded the label to be ‘z’):

Is it a bug?

[TJS]

The edges in the top screenshot are backed by two “links” each labeled “z” and are generated by the function “Group_oda_async”. I believe our logic currently prefers “Group_oda_async” as a single label.

What behavior would you prefer to see? How can we best convey that the edge is backed by these two links with label “z”?

[lolive]

As far as i understand, in OntologyManager>Groups (and maybe also Monocle, #iAmNotSure), when a visual arrow is supposed to hold several distinct relationships, you have a cartridge in the middle of that arrow.
Something like this:

In my above example, that cartridge would hold only one value, so could be replaced by the value itself (in the above case: “z”)