C-c C-b asks layout with the condition's own name and draws the fields under it. The values stay refused, by name, because the shape of a condition is a fact about the build and its contents are a fact about the stopped frame — and only one of those is knowable today. A layout the daemon refuses is nil rather than an error: the buffer already draws a section saying why one is empty, and failing the whole command would take away the restarts over an annotation.
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