Yes, I thought it worked well after the 'wasted space' problem was solved, but I cannot tell for sure.

Here is the ticket: http://trac.sagemath.org/sage_trac/ticket/8776
Sorry, should have mentioned the ticket number in the first place.

I don't know why you and others have the same revision several times while I have none, but I guess the effect is the same. You may as well have none. I hope this problem can be solved as soon as possible, as I am missing already the great feeling of safety I had about working in the notebook. No computer crash used to scare me, until now.

Cheers,
Stan

On 16/07/10 23:20, kcrisman wrote:
I can confirm that in 4.4.4 ALL revisions (there were 11, including
some from '1 day ago') of a worksheet I am working on are identical to
the current revision, which they definitely should not be!

This isn't exactly the same as Stan's issue, but almost certainly
related.  Stan, can you post which ticket is related to this (you
mention one below)?

I agree that this is very bad.  I am pretty sure there was a time
where the 'wasted space' was fixed but this didn't happen, but that
may have been before the switch to the sagenb package.

- kcrisman

On Jul 16, 10:38 am, Stan Schymanski<schym...@gmail.com>  wrote:
Dear all,

There has been a post in April about problems with the undo function
in the notebook and a ticket was created, but I have to report that
the undo function is stuffed entirely both in sage 4.4.3 and 4.4.4.
I just saved and closed a worksheet that was misbehaving and when I re-
opened it, it was in the version of ages ago and the undo list is
empty. The undo list is actually empty for the other notebooks as
well, so I haven't only lost a day of work but I may be losing more.
Is there a way to use the old notebook again, where it was working
well, despite "wasting space"? This is a major regression in my eyes.

Thanks for your help!

Cheers,
Stan



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