Entity->hasValue() should not set null value for uninitialized property

[mabar]

Entity->hasValue() should not set value for property which does not have value yet. In most cases it will just set null and gets eventually overriden, but in case of enum wrapper which expects fixed subset of values, null (which is out of that subset) raises an exception when enum is tried to be created.

To verify issue, drop the source change in ImmutableDataTrait - included test will fail.

[mabar]

To understand my intention - I have modified entities to not set value (and generate useless sql query) in case the set value is same with current value. Thanks to that for all properties is called hasValue() before the property is set. Currently it fails with enums.

use Nextras\Orm\Entity\Entity;

abstract class BaseEntity extends Entity
{

	/**
	 * @return $this
	 */
	public function setModifiedValue(string $name, mixed $value): self
	{
		if (!$this->hasValue($name) || $this->getValue($name) !== $value) {
			$this->setValue($name, $value);
		}

		return $this;
	}

	public function __set(string $name, mixed $value): void
	{
		$this->setModifiedValue($name, $value);
	}

}

[hrach]

Little more tough than I've expected but should be fixed now.

[hrach]

Probably I leave it only in master since it requires more changes and especially in area that got changed in master.

[mabar]

It looks great, thank you