fix 8.0.170 : record title with subtitle concat with two dots

library/Class/Notice/Titles.php

@@ -109,7 +109,7 @@ class Class_Notice_Titles {
   public function getAllTitlesAndSubtitlesAsArray() : array {
     $titles = $this->getAllTitlesAsArray();
 
-    if ( $subtitles = $this->_getSubtitlesAsArray())
+    if ( $subtitles = $this->getSubtitlesAsArray())
       $subtitles = array_map(fn($subtitle) => ': ' . $subtitle,
                              $subtitles);
 
@@ -117,7 +117,7 @@ class Class_Notice_Titles {
   }
 
 
-  protected function _getSubtitlesAsArray() : array {
+  public function getSubtitlesAsArray() : array {
     $subtitles = [];
     foreach(Class_Profil::getCurrentProfil()->getZonesTitre() as $zone)
       if ($subtitle = $this->_getFirstSubfield($zone))
@@ -128,7 +128,7 @@ class Class_Notice_Titles {
 
 
   public function getSubtitle() : string {
-    return implode($this->_getSubtitlesAsArray());
+    return implode(' : ', $this->getSubtitlesAsArray());
   }