List current user in "All Recipients" if it's a watcher

Previously when NotifyActor is false, even if current user is a watcher,
it was not listed in "Modify who receives mail ..." widget on modify
people page, which was confusing as current user would get notifications
of actions made by others.

This commit fixes this, with a hint to indicate that RT won't send
notifications of its own actions.

This also allows People to ignore specific ticket updates by unchecking
themselves there.

lib/RT/Action/Notify.pm

@@ -220,6 +220,8 @@ NotifyActor configuration, include NeverNotifyActor in the list of arguments.
 
 =cut
 
+our $ALWAYS_NOTIFY_ACTOR = 0;
+
 sub RemoveInappropriateRecipients {
     my $self = shift;
 
@@ -237,7 +239,7 @@ sub RemoveInappropriateRecipients {
         },
     ) if $args{NeverNotifyActor} ||
          (!RT->Config->Get('NotifyActor',$TransactionCurrentUser)
-         && !$args{AlwaysNotifyActor});
+         && !$args{AlwaysNotifyActor}) && !$ALWAYS_NOTIFY_ACTOR;
 
     $self->SUPER::RemoveInappropriateRecipients();
 }

share/html/Ticket/ModifyPeople.html

@@ -74,7 +74,16 @@
   <li>
   <input type="hidden" name="autorecipient" value="<% $addr %>">
   <input type="checkbox" name="checked_recipient" id="checked_recipient_<%$addr%>" value="<%$addr%>" <% $recips{$addr} ? "checked" : "" %>>
-  <label for="checked_recipient_<%$addr%>"><& /Elements/ShowUser, Address => Email::Address->parse($addr) &></label>
+  <label for="checked_recipient_<%$addr%>"><& /Elements/ShowUser, Address => Email::Address->parse($addr) &>
+%   if ( !$notify_actor && $addr eq ($session{CurrentUser}->EmailAddress // '') ) {
+    <span class="hints"><i>
+      <&|/l&>RT won't send you mail for ticket updates you make.</&>
+%     if ( $session{CurrentUser}->HasRight( Right => 'ModifySelf', Object => RT->System ) ) {
+      <&|/l_unsafe, '<a target="_blank" href="' . RT->Config->Get('WebPath') . '/Prefs/Other.html">' . loc('Preferences') . '</a>'&>You can adjust this setting on the [_1] page.</&>
+%     }
+    </i></span>
+%   }
+  </label>
   </li>
 % }
 </ul>
@@ -114,6 +123,12 @@
 }
 
 # Use the ticket's scrips to figure out the new list of recipients.
+my $notify_actor = RT->Config->Get( 'NotifyActor', $session{CurrentUser} );
+
+# Force to notify actor to list current user
+require RT::Action::Notify;
+local $RT::Action::Notify::ALWAYS_NOTIFY_ACTOR = 1;
+
 my @txns = $Ticket->DryRun(
     sub {
         my $MIME = MIME::Entity->build( Type => "text/plain", Data => "" );