Make sure we are seeked to correct position if using the last mail's mail_ctx directly.
Make sure we are seeked to correct position if using the last mail's
mail_ctx directly.

Distrotech/dovecot,damoxc/dovecot,Distrotech/dovecot,damoxc/dovecot,damoxc/dovecot,damoxc/dovecot,Distrotech/dovecot,Distrotech/dovecot,Distrotech/dovecot,damoxc/dovecot