Output of the "On using the UniqueEntity validator without annotation" Symfony snippet

Environment:

• Strangebuzz Snippet VM: 6.4.9
• Symfony: 6.4.16

Code execution output:

❌ Form is not valid: Error: "ERROR: This value should not be blank.
ERROR: This value is already used." (slug: "on-using-the-uniqueentity-validator-without-annotation")
❌ Form is not valid: Error: "ERROR: This value should not be blank." (slug: "new-unique-slug")
❌ Form is not valid: Error: "ERROR: This value should not be blank." (slug: "other-new-unique-slug")

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