It seems that the parsing of tags with plusses (
+) in them broke recently. This is very inconvenient for topics like C++.
See these questions tagged with
Now, if you select another tag from the list on the right, such as "templates", it used to bring you to "[c++] [templates]". However, as of fairly recently (somewhere in the last month or so), it started bringing you to "[c+++templates]". It appears that the space in the URL (encoded as
%20) has been replaced by a
It seems that the thing that generates the search URLs is missing a URL encoding step.