Formatting references printing year twice

[leem44]

There's something weird about how this is rendering. I see this on the rendered page:

"Stanford Health Care. 2021. “What Is Cancer?” 2021. https://stanfordhealthcare.org/medical-conditions/cancer/cancer.html."

2021 is printed twice...

Originally posted by @trevorcampbell in #234 (comment)

[leem44]

This occurs with a couple of the references so we should go through and check all of them

[trevorcampbell]

@leem44 I'll bet it's because there are @online bibtex entries, which isn't standard. In the makeindex branch I had to convert these to @misc. Let me see whether the issue is fixed in that branch. Either way I'll add this to #238

[trevorcampbell]

Nope, changing to @misc doesn't solve the issue (but it does at least let the PDF compile properly).

I also noticed that the PDF bibliography output is really incomplete.

[trevorcampbell]

This is no longer happening in either the PDF or HTML copy.