As noted in PR 128 the cross-reference isn't working as expected.
Well that turned out to be a lot simpler than I expected. On the 10th look, I realized the xref had .aoc instead of .adoc. Fixed that in f69bccd and now it works as expected.
.aoc
.adoc
Metadata Update from @bcotton: - Issue close_status updated to: complete - Issue status updated to: Closed (was: Open)