<p dir="auto">Sorry, low quality bug report here but I'm working to a deadline.</p>
<p dir="auto">Browser: Chrome latest<br>
Visit this page: <a href="http://getbootstrap.com/components/" rel="nofollow">http://getbootstrap.com/components/</a><br>
Its currently using Bootstrap 3.2.0</p>
<p dir="auto">On my desktop 1920*1080, on a windows 8 pc, maximised window.</p>
<p dir="auto">If I scroll down to the end of the page using either of these two methods:<br>
1/ press END, then scroll up one mouse wheel and back down again OR<br>
2/ manually drag the scrollbar to the end of the page</p>
<p dir="auto">you will notice that the affix plugin "pops" and goes off the top of the page. I assume this may be intended behaviour as its being left behind as you go beyond its affix zone.</p>
<p dir="auto">If you press HOME after that it jumps back to the top of the page but the affix is now in the wrong place and appears to be affixed to the top of window instead of its original affix top location. Scrolling at all fixes the issue and it pops back to its affix start location.</p>
<p dir="auto">Obscure, yes. Browser issue, probably. Close the issue if you like, I'll only be mildly offended :)</p>
<p dir="auto">I think that its actually breaking both ways, if you END down it goes further than it should. Then if you get it into my scroll bug location and HOME it does the same bug in reverse?</p>
<p dir="auto">It is possible to go to the top of the page, without the plugin assigning affix-top classname.</p>
<p dir="auto">Here's an example:<br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://cloud.githubusercontent.com/assets/613331/3001517/1d0a574c-dd31-11e3-875b-d496d697100a.png"><img src="https://cloud.githubusercontent.com/assets/613331/3001517/1d0a574c-dd31-11e3-875b-d496d697100a.png" alt="14 05 16 6cwp5" style="max-width: 100%;"></a></p>
<p dir="auto">It's really easy to reproduce by pressing <code class="notranslate">end</code> and then <code class="notranslate">home</code> buttons.</p>