getPrettyConstraint example

    private function validateReplaces(
        PackageInterface $package,
        array $pluginDependencies,
        RequirementExceptionStack $exceptionStack
    ): array {
        foreach ($package->getReplaces() as $replace) {
            $replaceConstraint = $replace->getConstraint();

            if ($replace->getPrettyConstraint() === 'self.version') {
                $replaceConstraint = new Constraint('==', $package->getVersion());
            }

            $pluginDependencies['require'] = $this->checkRequirement(
                $pluginDependencies['require'],
                $replace->getTarget(),
                $replaceConstraint,
                $exceptionStack
            );

            $pluginDependencies['conflict'] = $this->checkConflict(