<DKIM> Gmail Label Sync - Label Header Duplication Issue

[Ethan Schoonover]

I wanted to also note that I added this to the github issues here:
https://github.com/OfflineIMAP/offlineimap/issues/131

On Wed, Nov 19, 2014 at 2:45 PM, Ethan Schoonover
<es at ethanschoonover.com> wrote:
> Thanks Nicolas. I'm just starting a full Python self-study course now
> otherwise I'd have jumped in on it myself. Maybe in a while :)
>
> On Wed, Nov 19, 2014 at 2:44 PM, Nicolas Sebrecht
> <nicolas.s-dev at laposte.net> wrote:
>> On Wed, Nov 19, 2014 at 11:55:36AM -0800, Ethan Schoonover wrote:
>>
>>> SUMMARY:
>>> Offlineimap may create multiple headers recording the gmail labels
>>> when a message is refiled remotely on the gmail server. The last of
>>> these is always the correct header, but upon any subsequent scan of
>>> the message due to mtime change, offlineimap will read in only the
>>> first header, resulting in an incorrect relabeling of the message.
>>>
>>> Thus the issue is that, in a multiple-label-header condition,
>>> offlineimap writes to a new header at the end of the header sequence,
>>> but subsequently reads from the first label-header available.
>>>
>>>
>>> WHAT SHOULD HAPPEN?
>>> Offlineimap should either NOT create multiple label headers or should
>>> consistently read write to the same (either first or last) label
>>> header.
>>>
>>>
>>>
>>> REPRODUCIBLE EXAMPLE:
>>> The state of the headers (X-Keywords in this case) is shown in each step below:
>>
>> Very nice analysis Ethan. I hope someone will fix this!
>>
>> --
>> Nicolas Sebrecht