Data variables don't store all the right values (at least `archive_cases_dv_subset`)

[kenmawer]

archive_cases_dv_subset behaves differently from as_epi_archive(archive_cases_dv_subset$DT), as the former does not have column names defined, as noted by what shows up when calling (i.e. printing) the objects. I suspect that other data objects have similar problems, too.

Note: this may be related to or even a duplicate of #125; I still need to confirm that this is the case though.

[brookslogan]

Even with the fix for #125 included in [#101], this will still be different, as I have kept archive_cases_dv_subet uncompactified to not break some tests, and the latter expression will compactify+warn. We should sometime make the tests not dependent on this data object so we are free to compactify=TRUE in the data object generation + do other changes to the data object without impacting the tests.

[kenmawer]

For this, I assumed neither uses compactify, as though compactify were never implemented.

[brookslogan]

Okay, then I believe this is a consequence of #125 and resolved by changes that are included in #101. Marking as duplicate of #125, closing.