[16][FIX] helpdesk_mgmt: send confirmation mail at ticket creation from mail

[Kev-Roche]

When a ticket is created from a mail (via fetchmail and an alias), the confirmation mail from the first stage is not sent. First commit add test with the failing one. Second commit fix it.

[github-actions[bot]]

There hasn't been any activity on this pull request in the past 4 months, so it has been marked as stale and it will be closed automatically if no further activity occurs in the next 30 days. If you want this PR to never become stale, please ask a PSC member to apply the "no stale" label.

[emiliesoutiras]

Hi @metaminux, please can you review it?

[github-actions[bot]]

There hasn't been any activity on this pull request in the past 4 months, so it has been marked as stale and it will be closed automatically if no further activity occurs in the next 30 days. If you want this PR to never become stale, please ask a PSC member to apply the "no stale" label.

[flotho]

Hi @Kev-Roche , any chance to rebase this one ?

[marcelsavegnago]

ping @Kev-Roche @rvalyi

[rvalyi]

closing as it is merged in #823