Fix property access issue

Author: sebastianfeldmann

src/Command/Diff/Compare/FullDiffList.php

@@ -104,30 +104,30 @@ class FullDiffList implements OutputFormatter
  /**
  * The currently processed file
  *
- * @var \SebastianFeldmann\Git\Diff\File
+ * @var \SebastianFeldmann\Git\Diff\File|null
  */
- private File $currentFile;
+ private ?File $currentFile = null;
 
  /**
  * The file name of the currently processed file
  *
- * @var string
+ * @var string|null
  */
- private string $currentFileName;
+ private ?string $currentFileName = null;
 
  /**
  * The change position of the currently processed file
  *
- * @var string
+ * @var string|null
  */
- private string $currentPosition;
+ private ?string $currentPosition = null;
 
  /**
  * The operation of the currently processed file
  *
- * @var string
+ * @var string|null
  */
- private string $currentOperation;
+ private ?string $currentOperation = null;
 
  /**
  * List of collected changes