# Renaming a topic breaks Gmail threading

**URL:** <https://meta.discourse.org/t/renaming-a-topic-breaks-gmail-threading/39448>\
**Category:** Feature\
**Created:** [2월 12, 2016, 5:15오전 UTC](https://meta.discourse.org/t/renaming-a-topic-breaks-gmail-threading/39448 "2016-02-12T05:15:03Z")\
**Posts on this page:** 1\
**Showing post:** 1

<div class="post-metadata">

**Author:** ![sam](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/sam/32/102149_2.png) [@sam](https://meta.discourse.org/u/sam)\
**Post date:** [2월 12, 2016, 5:15오전 UTC](https://meta.discourse.org/t/renaming-a-topic-breaks-gmail-threading/39448/1 "2016-02-12T05:15:04Z")

</div>

If you rename a topic you break gmail threading, leaving a discontinuous conversation view in gmail:

![](https://global.discourse-cdn.com/meta/original/3X/7/4/74470d368cd11f594acd100b28812626e77e41ca.png)

We try to keep continuity by including the `In-Reply-To` and `Refrences` headers (which are matching in both emails):

```plaintext
In-Reply-To: <topic/39445@meta.discourse.org>
References: <topic/39445@meta.discourse.org>

```

But… Gmail is just being silly:

> <https://webapps.stackexchange.com/questions/16095/gmail-grouping-messages-with-the-same-subject/16096#16096>

> Currently, this is not possible with Gmail. It uses the subject line as the unique identifier of a conversation and nothing else. A lot of people have been requesting this feature for several years however.

This is not going to change any time soon, the issue has existed [since 2010](http://www.sensefulsolutions.com/2010/08/how-does-email-threading-work-in-gmail.html)

I think this is one of those rare cases where it is worth adding a setting just for GMail.

> retain original topic title in email notifications

Given how predominate GMail is I would go as far as to say it should be default on, even if not it should be a user option.

Thoughts?

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