Revert "Merge branch 'fix-email-threading' into 'master'"

This reverts commit 97fd990ecde387290be269ef7daafa5761f94af6, reversing
changes made to f451a697e0c018359e6d8ff3aaba4eb0484c4bee.

Conflicts:
	app/mailers/emails/notes.rb
	app/mailers/emails/projects.rb

1 files changed, 16 insertions, 16 deletions

diff --git a/app/mailers/emails/issues.rb b/app/mailers/emails/issues.rb
index 516e3da84c8..a096df9dc0d 100644
--- a/app/mailers/emails/issues.rb
+++ b/app/mailers/emails/issues.rb
@@ -4,10 +4,10 @@ module Emails
       @issue = Issue.find(issue_id)
       @project = @issue.project
       @target_url = project_issue_url(@project, @issue)
-      mail_new_thread(@issue,
-                      from: sender(@issue.author_id),
-                      cc: recipient(recipient_id),
-                      subject: subject("#{@issue.title} (##{@issue.iid})"))
+      set_message_id("issue_#{issue_id}")
+      mail(from: sender(@issue.author_id),
+           to: recipient(recipient_id),
+           subject: subject("#{@issue.title} (##{@issue.iid})"))
     end
 
     def reassigned_issue_email(recipient_id, issue_id, previous_assignee_id, updated_by_user_id)
@@ -15,10 +15,10 @@ module Emails
       @previous_assignee = User.find_by(id: previous_assignee_id) if previous_assignee_id
       @project = @issue.project
       @target_url = project_issue_url(@project, @issue)
-      mail_answer_thread(@issue,
-                         from: sender(updated_by_user_id),
-                         cc: recipient(recipient_id),
-                         subject: subject("#{@issue.title} (##{@issue.iid})"))
+      set_reference("issue_#{issue_id}")
+      mail(from: sender(updated_by_user_id),
+           to: recipient(recipient_id),
+           subject: subject("#{@issue.title} (##{@issue.iid})"))
     end
 
     def closed_issue_email(recipient_id, issue_id, updated_by_user_id)
@@ -26,10 +26,10 @@ module Emails
       @project = @issue.project
       @updated_by = User.find updated_by_user_id
       @target_url = project_issue_url(@project, @issue)
-      mail_answer_thread(@issue,
-                         from: sender(updated_by_user_id),
-                         cc: recipient(recipient_id),
-                         subject: subject("#{@issue.title} (##{@issue.iid})"))
+      set_reference("issue_#{issue_id}")
+      mail(from: sender(updated_by_user_id),
+           to: recipient(recipient_id),
+           subject: subject("#{@issue.title} (##{@issue.iid})"))
     end
 
     def issue_status_changed_email(recipient_id, issue_id, status, updated_by_user_id)
@@ -38,10 +38,10 @@ module Emails
       @project = @issue.project
       @updated_by = User.find updated_by_user_id
       @target_url = project_issue_url(@project, @issue)
-      mail_answer_thread(@issue,
-                         from: sender(updated_by_user_id),
-                         cc: recipient(recipient_id),
-                         subject: subject("#{@issue.title} (##{@issue.iid})"))
+      set_reference("issue_#{issue_id}")
+      mail(from: sender(updated_by_user_id),
+           to: recipient(recipient_id),
+           subject: subject("#{@issue.title} (##{@issue.iid})"))
     end
   end
 end