iOS 6 iCloud bookmarks sync stuck in limbo... any idea?

Hello,

this morning my iPad 2 with iOS 6 started preventing me from making any action on bookmarks in Safari. I noticed that my long reading list had all "downloads" pending.

Waited but nothing changed. Plugged in my power outlet and waited but nothing changed.

So I tried to disable bookmarks sync, iCloud altogether, delete sites data, history and cookies, disabled and re-enabled private browsing, I restored my iPad from an iCloud backup deleting data and settings from iPad itself (that took some time). I obtained always the same result: other services are disabled flawlessly (my contacts, notes and so on are deleted and reloaded without any negative effect) but bookmarks no, they are still there.

Still now that I restarted a few times also with home and power button pressed for those 15 seconds and I'm logged out of iCloud, those bookmarks are there looking at me with a distinct grin between the lines. Last thing I tried was to sync with iTunes enabling that checkbox used to replace iPad bookmarks with those on my iMac; my beloved iPad canceled the operation, every time I tried (just to be sure, you know).

Is there any way to hard reset just Safari? Something I didn't try? I'd really, really, really like to avoid a full restore "as new device".

How wonderful would be if I could turn a switch and initialize Safari just like on the desktop version... also a selective backup option wouldn't be bad or a way to export specific app backups through iTunes.

Thank you very much for your time and in advance for any hint you could give me.