I was putting the finishing touches on a reflowable ePUB that I previewed in iBooks and Google Play Books. It previews fine in iBooks, but there's one instance in PB where a plain text date range is displaying as a URL link, with the default blue color, at the default zoom level. If I press my finger over the text, it highlights as a URL. To add to this oddity, if I pinch and zoom the text, it then displays as it should, as plain text.
The date range looks like this: 08/14–15/82
In the screenshot below, the first one is what I see at normal zoom. The 2nd is after i pinch-and-zoom. The third is what I see when I press my finger over it to highlight it. At this point, I think the dash is causing this, but it's a bug with PB.