rel #31316: fix test failures

tests/application/modules/telephone/controllers/RechercheControllerHarryPotterTest.php

@@ -699,7 +699,7 @@ class Telephone_RechercheControllerHarryPotterReservationWithPopupTest extends T
 
     Class_CommSigb::setInstance(Storm_Test_ObjectWrapper::mock()
                                 ->whenCalled('reserverExemplaire')
-                                ->answers(array('popup' => 'http://url.de/la-popup')));
+                                ->answers(['popup' => 'http://url.de/la-popup']));
 
     Class_Exemplaire::getLoader()
       ->newInstanceWithId(33)
@@ -710,6 +710,12 @@ class Telephone_RechercheControllerHarryPotterReservationWithPopupTest extends T
   }
 
 
+  public function tearDown() {
+    Class_CommSigb::setInstance(null);
+    parent::tearDown();
+  }
+
+
   /** @test */
   public function pageShouldContainsErrorMessage() {
     $this->assertXPathContentContains('//div', 'non supportée');