Last modified: 2012-08-22 08:54:52 UTC
bug 39296 caused the secondary key functionality to break for me. Secondary sortkey is triggered by sorting 1 column, then keeping shift pressed and sorting another column. Tested with Safari 6 on https://en.wikipedia.org/wiki/Help:Sorting#Secondary_key
More data points: Works for me in Firefox 14.0.1, Chromium 20.0.1132.57, Safari 5.1.4, and IE 8. Not sure if/when I'll have a chance to try it in Safari 6.
Hmm, I can't seem to reproduce it at the moment. It might be something like a race condition, or perhaps a caching fluke. Or perhaps I just didn't test it properly. I'll give it a few more tries and otherwise will close the bug.
Unable to reproduce.