Philipp,
Thanks for the patch! This is a neat implementation, but I'd rather
achieve the same goal with less data in cookies.

IIUC, the issue.item page has the search URL embedded, but once you lose
the cookie you'd have to perform a SearchAction to be able to navigate
after clicking Next/Previous?

Also, I'm developing against 1.4.2, which doesn't have client.session_api :(

I think we can pass both IDs and the pointer in the URL, looks ugly but
is easy to share/bookmark/whatever :)

Daniel