Identity map, another object of class was already present for the same ID

[danilovl]

Bug Report

Q	A
Version	^3.1
Previous Version if the bug is a regression	^2.8

Another doctrine packages:

"doctrine/doctrine-bundle": "^3.1",
"doctrine/doctrine-migrations-bundle": "^4.0",
"doctrine/orm": "^3.3",

"symfony": "7.4"
"php": "8.5.0"

Before update to 3.1 - works fine

Summary

Wallet

   #[ORM\ManyToOne(targetEntity: Currency::class, inversedBy: 'wallets')]
   #[ORM\JoinColumn(name: 'currency_id', referencedColumnName: 'id', nullable: false)]
   private Currency $currency;

Currency

    /**
     * @var Collection<Wallet>
     */
    #[ORM\OneToMany(targetEntity: Wallet::class, mappedBy: 'currency')]
    private Collection $wallets;

Uses simple query to get all entities.

$this->createQueryBuilder('wallet');

Current behavior

When the cache does not exist, opening the page causes this error only for these relations in twig.
When use dump in controller - no error.

After the cache is created, everything works fine.

Expected behavior

no error

How to reproduce

not sure how reproduce and why this error show only for one entity relationship.

[ostrolucky]

What is the complete list of packages that were upgraded when you upgraded to doctrine-bundle 3.1? Couldn't be issue in those?

[danilovl]

@ostrolucky Hi, only two packages were upgraded

"doctrine/doctrine-bundle": "^2.8",
"doctrine/doctrine-migrations-bundle": "^3.2"

^2.8 works fine, but after update to ^3.1 have error

"doctrine/doctrine-bundle": "^3.1",
"doctrine/doctrine-migrations-bundle": "^4.0",