400 Bad Request nginx/0.7.61

This bug seems to recur in the following situation: 1. http://www.diigo.com/bookmark/http%3A%2F%2Fdiscussions.apple.com%2Fmessageview.jspa%3FmessageID%3D10228266?tab=comment&uname=grahamperrin 2. in the lower part of Meta, scroll down to reveal the comment field 3. paste four lines    — I pasted the four that are also pasted to http://pastebin.ca/1635680 4. Add Comment Symptoms * in the topmost bar of Diigo Meta:   Processing * after which I find error 400 in response to http://www.diigo.com/user/grahamperrin?dm=advanced and some other Diigo URLs

Permalink for this group bookmark http://groups.diigo.com/group/Diigo_HQ/content/1017606

Symptoms recurred after the following sequence: 1. http://www.diigo.com/bookmark/http%3A%2F%2Fwww.maclife.com%2Farticle%2Ffeature%2Fterminal_tips_every_mac_usershould_know?f=m&tab=people&uname=grahamperrin   — probably loaded OK and I probably did not attempt to reveal the preview pane 2. in the toolbar of Safari, manually edit the URL to http://www.diigo.com/bookmark/http%3A%2F%2Fwww.maclife.com%2Farticle%2Ffeature%2Fterminal_tips_every_mac_usershould_know?f=m&tab=comment&uname=grahamperrin 3. key return 4. AFAIR when I revealed the preview pane, the highlights did not appear 5. in the uppermost bar of Diigo Meta, I command-clicked either the (blue?) title of the bookmarked page, or the (green?) URL of the bookmarked page 6. http://www.maclife.com/article/feature/terminal_tips_every_mac_usershould_know opened in a new tab to the side 7. command-3 for accelerated loading of Diigolet 4.0b14 8. clicked the Comment button to reveal the palette 9. clicked the first highlight 10. Diigolet found and scrolled to that highlight 11. in the earlier tab with http://www.diigo.com/bookmark/http%3A%2F%2Fwww.maclife.com%2Farticle%2Ffeature%2Fterminal_tips_every_mac_usershould_know?f=m&tab=comment&uname=grahamperrin: command-r to reload, error 400. Postscript Edited this comment heavily to include greater detail.

Bug recurred after using http://tinyurl.com/ to produce short URL http://tinyurl.com/apple-discuss-2140119 then opening that link in a new tab, http://www.diigo.com/bookmark/http%3A%2F%2Fdiscussions.apple.com%2Fmessageview.jspa%3FmessageID%3D10228266?tab=comment&uname=grahamperrin fails with error 400