Bug #98146: TYPO3\CMS\Extbase\Persistence\ObjectStorage::key() should be compatible with return type (int) of method Iterator<int,TEntity>::key() - TYPO3 Core - TYPO3 Forge

Bug #98146

Updated by Sascha Egerer over 2 years ago

@TYPO3\CMS\Extbase\Persistence\ObjectStorage@ `TYPO3\CMS\Extbase\Persistence\ObjectStorage` does implement the @\Iterator@ `\Iterator` Interface. 
 The method @\Iterator::key()@ `\Iterator::key()` must return an integer but @ObjectStorage::key()@ `ObjectStorage::key()` does return a string. 

 IMO this will be a breaking change even if It'll not be used by many users.