Hi, Chandler. It seems that Phabricator is gaining traction, which is probably a good thing overall. However, the e-mails that go to cfe-commits don't seem to get coalesced by Apple Mail's "Organize by Conversation" feature, even though they have the same subject. Can you/someone add a "References" header that just refers to the initial patch message? I think that would probably do it for us.
Thanks,
Jordan
Hi Jordan,
I'm working on this - is it all mails or just specific examples? Can
you please point me at one of the example threads so I can resolve
this asap ("it should already work" and all that, so I'll need to
investigate ;).
Thanks!
/Manuel
Quickly scanning over my inbox shows none of them working -- or rather, it's grouping them if they have the same sender, but not otherwise. So for "[PATCH] Add script to update AST matcher reference", I see your e-mails in one group and Dmitri's in another. I'm going to backpedal on what I said previously because I /do/ see "In-reply-to" and "References" fields in both e-mails now (not sure how I missed that, or maybe it's new). So now I'm confused.
In-reply-to:
<differential-rev-PHID-DREV-bvljzqqpemopqzydwnwn-req@llvm-reviews.chandlerc.com>
References:
<differential-rev-PHID-DREV-bvljzqqpemopqzydwnwn-req@llvm-reviews.chandlerc.com>
I hope it's not trying to do something intelligent with the Thread-index header and failing, or simply choking on the long reply message name. I'll file a bug on our side too and see who figures it out first.
Thanks,
Jordan
Filed a bug:
https://secure.phabricator.com/T1735
Feel free to cc' yourself there 
Otherwise I'll keep you posted on
this thread.
Cheers,
/Manuel
So, as fallout from that bug, it's basically that Phab currently has 2
modes for threading topics: Either it always uses Re: or never.
They are going to fix this. Until then, what's our preferred solution?
Always Re: will be slightly confusing when the first review request
already has the "Re:" prefix
Never Re: breaks Apple Mail
Thoughts?
/Manuel
Threading is life!
-eric