Author: TomH
[Added to the original trac issue at 2.40pm, Sunday, 11th August 2013]

If we accept this argument then no web site would ever be able to redirect an old URL to a new one.

Of course if browsers did what they are supposed to and updated bookmarks when they received a permanent redirect then this wouldn't be a problem anyway, but of course they have never done that...

Unfortunately I really don't think there is much we can do here - we want to redirect to the new style in order to encourage people to move from the old style to the new one.

Author: aseerel4c26
[Added to the original trac issue at 2.53pm, Sunday, 11th August 2013]

Really needed redirect to a new URL is the old still works? A browser should update a bookmark? Hmm, no, not really - I set a bookmark to a specific page, why should the target website have the right to change my bookmark?

Author: TomH
[Added to the original trac issue at 2.58pm, Sunday, 11th August 2013]

Well that is what the HTTP spec has always said - it's the whole point of the difference between a temporary redirect and a permanent one. The idea being a permanent one means the page has moved permanently so links to it need to be updated.