This was initially reported in UserVoice during Testathon: http://duraspace.uservoice.com/forums/84583-dspace-1-8-feedback/suggestions/2261545-incorrectly-active-breakcrumb-links?ref=title
On the following pages, the final name in the breadcrumb trail is active but should not be (because the user is already there):
People (Manage E-people)
Groups (Manage Groups)
This seems like something that could be fixed easily in our XMLUI Themes, so I went ahead and scheduled it for 1.8.0. Needs a volunteer!