Thread:Project:Support desk/ampersand doesn't work on page names anymore ?

Since the upgrade to 1.16, page names (and only page names) containing an ampersand character doesn't show the ampersand, but the code instead. For example, http://www.soundamental.org/index.php/Jam_&_Spoon (one can see "Jam & amp ; Spoon" instead of the usual "Jam & Spoon" from last version above the red line Is there a way to correct this ? a mySQL request ? Thanks for your answer