symfony · fabpot · Dec 7, 2019 · Dec 4, 2019
diff --git a/src/Symfony/Component/String/AbstractString.php b/src/Symfony/Component/String/AbstractString.php
@@ -692,6 +692,11 @@ public function wordwrap(int $width = 75, string $break = "\n", bool $cut = fals
        return $str;
    }

+    public function __sleep(): array
+    {
+        return ['string'];
+    }
+
    public function __clone()
    {
        $this->ignoreCase = false;

diff --git a/src/Symfony/Component/String/UnicodeString.php b/src/Symfony/Component/String/UnicodeString.php
@@ -347,6 +347,11 @@ public function startsWith($prefix): bool
        return $prefix === grapheme_extract($this->string, \strlen($prefix), GRAPHEME_EXTR_MAXBYTES);
    }

+    public function __wakeup()
+    {
+        normalizer_is_normalized($this->string) ?: $this->string = normalizer_normalize($this->string);
+    }
+
    public function __clone()
    {
        if (null === $this->ignoreCase) {