Update 'picker.html'

picker.html

@@ -106,6 +106,7 @@
                     ignored_pkmn[ignored_pkmn.length] = to_ignore;
                 }
                 elem.style.color = "white";
+                picked[i] = null;
             }
             ignored_pkmn.sort();
             document.getElementById("ignored_pkmn").value = ignored_pkmn.join("\n");
@@ -116,6 +117,7 @@
                 var elem = document.getElementById(i.toString());
                 elem.innerHTML = "";
                 elem.style.color = "white";
+                picked[i] = null;
             }
         }