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bug#20137: number of generation doesn't always rise monotonically


From: Ludovic Courtès
Subject: bug#20137: number of generation doesn't always rise monotonically
Date: Thu, 19 Mar 2015 09:47:06 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4 (gnu/linux)

address@hidden (Taylan Ulrich "Bayırlı/Kammer") skribis:

> address@hidden (Ludovic Courtès) writes:
>
>>   2. Upon rollback from P to N, keep all the generations, but use P+1
>>      for the next generation number.  Doesn’t work, because rolling back
>>      from P+1 would bring you back to P instead of N.
>
> Perhaps we can eventually move to an actual tree structure where the
> nodes can be named whatever.

I agree this would be the right thing for a real undo mechanism.

But how useful would it be?  I’ve never been in a situation where
rollback/switch-generation would be insufficient or inappropriate.

I’m concerned that this would add both code and user interface
complexity for mostly hypothetical use cases.  WDYT?

Thanks,
Ludo’.





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