This bug is a symptom of the following base-bug:
I have now solved this by not ajaxifying links that contain a hash, as they are not jumped to properly otherwise...
However, if one does the following (e.g. on http://4nf.org/ -> sidebar):
... nothing happens.
In Firebug / Chrome, no error is registered.
"statechange" is not even triggered.
Just nothing happens...
Any ideas why?
Solved by adding l.hash = ""; to function parseLink() in plugin setupClicks!
As soon as Balupton History supports hash handling this can be changed.
Solved from version 2.0.0 onwards by procuring Pronto.js