Setting a value inside a null coalescing operation doesn't trigger a violation of the rule 0012

[Fabccc]

Describe the bug

Setting a value inside a null coalescing operation doesn't trigger a violation of the rule 0012.

To Reproduce Steps to reproduce the behavior:

• Create a simple service class, like this:

  
  <?php
  namespace App\Service;
  class CacheService
  {
  private int $value;
  
  public function __construct()
  {
  }
  
   public function singleTernary(int $value): int{
      return $this->value ?? $this->value = $value * 2 + 1;
  }
  }

- Launch phanalist on it
- No violation

**Expected behavior**
 Setting a value inside a null coalescing operation should trigger a violation of the rule 0012

[Fabccc]

On our project, it works like charm, i'm closing the issue as completed.