[Tickets #12570] Re: Unseen message marked seen when returning to folder

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Ticket URL: http://bugs.horde.org/ticket/12570
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  Ticket             | 12570
  Updated By         | Michael Slusarz <slusarz at horde.org>
  Summary            | Unseen message marked seen when returning to folder
  Queue              | IMP
  Version            | Git master
  Type               | Enhancement
  State              | Feedback
  Priority           | 1. Low
  Milestone          |
  Patch              |
  Owners             | Michael Slusarz
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Michael Slusarz <slusarz at horde.org> (2013-08-15 11:26) wrote:

> I agree that the least surprising behavior is a good guiding  
> principal. That's exactly why I suggested this change. What might be  
> a user's most probable intention when marking a message as unseen?  
> Having it unseen. Having to unselect the message or doing some other  
> actions to keep this explicit decision, just because the client has  
> some side-effects while implementing the mailbox-state-restore is  
> not very intuitive OTOH.

But I still disagree because it is not consistent.  EVERY other time a  
message is selected it remains selected when returning to the mailbox.  
  We can't make this a special case based on the presence of a single  
flag.

I would think the correct behavior would instead be to unselect the  
message immediately when removing the seen flag.  Flagging messages  
MAY cause other actions to occur (e.g. flagging as deleted may move  
the message to the Trash mailbox), so this is more acceptable behavior.