This may be outside the Plack testing and an entirely separate issue, but I noticed when adding items, that the home library and current location columns are missing from http://test-intra.plack.bywatersolutions.com/cgi-bin/koha/cataloguing/additem.pl and are not in the option list for show/hide columns. That's a huge problem for a multibranch system.....
1. Add a record and then an item or add an item to an existing record.
2. After the item is added, note that the items table on http://test-intra.plack.bywatersolutions.com/cgi-bin/koha/cataloguing/additem.pl (which is that a Plack url? or the old one?) does not show the home library or current location columns and that they are not available as options in the show/hide columns display.
On editing an item (http://test-intra.plack.bywatersolutions.com/cgi-bin/koha/cataloguing/additem.pl?op=edititem&biblionumber=1&itemnumber=1&searchid=#edititem), I see the current location and the home library is the "Permanent location" field.
I can't reproduce it on the test server as well, so I'm closing with WORKSFORME status.
Heather, if you have more information on it, please reopen. Maybe i just misunderstood the problem...
I just relooked at this particular one and either when I first tested, I didn't realize that future releases change homelibrary to permanent location and/or the items I originally added didn't have current location/permanent locations yet. It works me now, too.