serialize(): "comment" is returned from __sleep multiple times in store in FileCacheDriver.php

[azzeddinefaik]

Creating: \PDepend\Source\AST\ASTClassOrInterfaceReference(foo)PHP Notice: serialize(): "comment" is returned from __sleep multiple times in /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/Util/Cache/Driver/FileCacheDriver.php on line 151
PHP Stack trace:
PHP 1. {main}() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/bin/pdepend:0
PHP 2. PDepend\TextUI\Command::main() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/bin/pdepend:72
PHP 3. PDepend\TextUI\Command->run() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/TextUI/Command.php:627
PHP 4. PDepend\TextUI\Runner->run() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/TextUI/Command.php:243
PHP 5. PDepend\Engine->analyze() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/TextUI/Runner.php:314
PHP 6. PDepend\Engine->performParseProcess() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/Engine.php:323
PHP 7. PDepend\Source\Language\PHP\AbstractPHPParser->parse() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/Engine.php:575
PHP 8. PDepend\Util\Cache\Driver\FileCacheDriver->store() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/Source/Language/PHP/AbstractPHPParser.php:398
PHP 9. serialize() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/Util/Cache/Driver/FileCacheDriver.php:151
PHP 10. PDepend\Source\AST\AbstractASTClassOrInterface->__sleep() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/Util/Cache/Driver/FileCacheDriver.php:151
PHP 11. PDepend\Source\AST\AbstractASTType->__sleep() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/Source/AST/AbstractASTClassOrInterface.php:364
PHP 12. PDepend\Util\Cache\Driver\FileCacheDriver->store() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/Source/AST/AbstractASTType.php:469
PHP 13. serialize() /Users/azzeddinefaik/.composer/vendor/pdepend/pdepend/src/main/php/PDepend/Util/Cache/Driver/FileCacheDriver.php:151