Merge branch '5.0'

* 5.0:
  [appveyor] bump cache
  [Twig][Mime] Removed extra quotes in missing package exception message
  [DI] µfix
  Allowing empty secrets to be set
  [DI] add missing property declarations in InlineServiceConfigurator
  [DI] fix detecting short service syntax in yaml
  Supress error from fread when reading a unix pipe
  [HttpClient] Fix scoped client without query option configuration
  [Workflow] Use a strict comparison when retrieving raw marking in MarkingStore
  [Workflow] Use a strict comparison when retrieving raw markin in MarkingStore

Author: nicolas-grekas

MarkingStore/MethodMarkingStore.php

@@ -56,7 +56,7 @@ public function getMarking(object $subject): Marking
 
         $marking = $subject->{$method}();
 
-        if (!$marking) {
+        if (null === $marking) {
             return new Marking();
         }
 

Tests/MarkingStore/MethodMarkingStoreTest.php

@@ -53,6 +53,18 @@ public function testGetSetMarkingWithSingleState()
         $this->assertEquals($marking, $marking2);
     }
 
+    public function testGetSetMarkingWithSingleStateAndAlmostEmptyPlaceName()
+    {
+        $subject = new Subject(0);
+
+        $markingStore = new MethodMarkingStore(true);
+
+        $marking = $markingStore->getMarking($subject);
+
+        $this->assertInstanceOf(Marking::class, $marking);
+        $this->assertCount(1, $marking->getPlaces());
+    }
+
     public function testGetMarkingWithValueObject()
     {
         $subject = new Subject($this->createValueObject('first_place'));