DX: fix tests to find ancestor to all SocialAction and SocialIssue

src/Bundle/ChillPersonBundle/Entity/SocialWork/SocialIssue.php

@@ -71,11 +71,15 @@ class SocialIssue
         $this->socialActions = new ArrayCollection();
     }
 
+    /**
+     * @internal use @see{SocialIssue::setParent} instead
+     * @param SocialIssue $child
+     * @return $this
+     */
     public function addChild(self $child): self
     {
         if (!$this->children->contains($child)) {
             $this->children[] = $child;
-            $child->setParent($this);
         }
 
         return $this;
@@ -216,10 +220,10 @@ class SocialIssue
     }
 
     /**
-     * @param Collection|SocialIssue[] $socialIssues
+     * @param array|SocialIssue[] $socialIssues
      * @return Collection
      */
-    public static function getDescendantsWithThisForIssues(Collection $socialIssues): Collection
+    public static function getDescendantsWithThisForIssues(array $socialIssues): Collection
     {
         $unique = [];
 
@@ -351,6 +355,8 @@ class SocialIssue
     {
         $this->parent = $parent;
 
+        $parent->addChild($this);
+
         return $this;
     }