https://bugs.kde.org/show_bug.cgi?id=331891
--- Comment #8 from Andreas Hartmetz <ahartm...@gmail.com> --- Copy of the commit message for convenience: Fix threading of Jira e-mail notifications Jira e-mail notifications coming from https://issues.redhat.com are semi-randomly split into two separate threads for each Jira key because the `References:` e-mail header contains multiple values but only the first value can be used to reliably construct the threads. This commit makes messagelib use the first value in the `References:` header instead of the last one to make the threading work as expected for Jira e-mail notifications. I have been using this patch for two years without observing any unexpected side effects. -- You are receiving this mail because: You are the assignee for the bug.