It's common, and even common in offline clients; the use of subject lines as a primary marker for conversation threading. Gmail's help pages tell that there are other factors, but it definitely can happen.
On Wed, Jul 30, 2014 at 11:31 AM, Andrew Bullock <[email protected]> wrote: > Has a bug just been released to do with conversation grouping? > > The GMail web UI is grouping completely different threads together simply > because they have the same subject. > > Repro steps: > > 1) Have a conversation in your inbox. > 2) Send a new email to anyone (not in the aforementioned conversation) > with the same subject as the conversation > 3) Observe the message is added to the end of the conversation grouping. > > > I've never seen this before. Is it deliberate? This makes > conversation-groupings completely unusable. > > Andrew > > -- > You received this message because you are subscribed to the Google Groups > "Gmail-Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/gmail-users. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Gmail-Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/gmail-users. For more options, visit https://groups.google.com/d/optout.
