finalize members lists

src/Bundle/ChillPersonBundle/Entity/Household/HouseholdMember.php

@@ -120,7 +120,7 @@ class HouseholdMember
         return $this->endDate;
     }
 
-    public function setEndDate(\DateTimeImmutable $endDate): self
+    public function setEndDate(?\DateTimeImmutable $endDate = null): self
     {
         $this->endDate = $endDate;
 

src/Bundle/ChillPersonBundle/Entity/Household/Position.php

@@ -77,6 +77,11 @@ class Position
         return $this->allowHolder;
     }
 
+    public function isAllowHolder(): ?bool
+    {
+        return $this->getAllowHolder();
+    }
+
     public function setAllowHolder(bool $allowHolder): self
     {
         $this->allowHolder = $allowHolder;