[SR-15685] "Inherits from" relationship field appears blank when subclassing a class from another module

[ethan-kusters]

Previous ID	SR-15685
Radar	rdar://80090675
Original Reporter	@ethan-kusters
Type	Bug
Status	Resolved
Resolution	Done

Attachment: Download

Additional Detail from JIRA

Votes	0
Component/s	Swift-DocC
Labels	Bug, StarterBug
Assignee	dgrumberg (JIRA)
Priority	Medium

md5: 017fab3f29d8a315c4481d90fb1ec6c1

Issue Description:

Summary:
When I subclass a class defined in another module, the “Inherits from” relationship field is listed on the page but its blank.

The `targetFallback` does appear in the symbol graph like it does for protocol conformance, so this appears to be a DocC bug, not a symbol graph bug.

I'd expect the behavior for subclassing here to match the behavior for protocol conformance.

"relationships": [
    {
        "kind": "conformsTo",
        "source": "s:3Foo0A5ClassC",
        "target": "s:3Bar0A8ProtocolP",
        "targetFallback": "Bar.BarProtocol"
    },
    {
        "kind": "inheritsFrom",
        "source": "s:3Foo0A5ClassC",
        "target": "s:3Bar0A5ClassC",
        "targetFallback": "Bar.BarClass"
    }
]

Notes:
Attaching the full symbol graph for this project along with a reproducing Swift package.

[swift-ci]

Comment by Daniel Grumberg (JIRA)

This has been resolved in #95