From 5c2c67351a90dc1cd8c6b8ea3a00c8554f9cfafb Mon Sep 17 00:00:00 2001
From: Danny van der Sluijs <danny.van.der.sluijs@infi.nl>
Date: Wed, 26 Feb 2025 14:28:40 +0100
Subject: [PATCH 1/2] fix: Create deep copy before checking each sub schema in
 anyOf

https://github.com/jsonrainbow/json-schema/issues/711
---
 .../Constraints/UndefinedConstraint.php       |  8 +++-
 tests/Constraints/UndefinedConstraintTest.php | 44 +++++++++++++++++++
 2 files changed, 50 insertions(+), 2 deletions(-)

diff --git a/src/JsonSchema/Constraints/UndefinedConstraint.php b/src/JsonSchema/Constraints/UndefinedConstraint.php
index 9b6c68ad..2c03af94 100644
--- a/src/JsonSchema/Constraints/UndefinedConstraint.php
+++ b/src/JsonSchema/Constraints/UndefinedConstraint.php
@@ -333,11 +333,15 @@ protected function validateOfProperties(&$value, $schema, JsonPointer $path, $i
         if (isset($schema->anyOf)) {
             $isValid = false;
             $startErrors = $this->getErrors();
+            $coerceOrDefaults = $this->factory->getConfig(self::CHECK_MODE_COERCE_TYPES | self::CHECK_MODE_APPLY_DEFAULTS);
+
             foreach ($schema->anyOf as $anyOf) {
                 $initErrors = $this->getErrors();
                 try {
-                    $this->checkUndefined($value, $anyOf, $path, $i);
-                    if ($isValid = (count($this->getErrors()) == count($initErrors))) {
+                    $anyOfValue = $coerceOrDefaults ? DeepCopy::copyOf($value) : $value;
+                    $this->checkUndefined($anyOfValue, $anyOf, $path, $i);
+                    if ($isValid = (count($this->getErrors()) === count($initErrors))) {
+                        $value = $anyOfValue;
                         break;
                     }
                 } catch (ValidationException $e) {
diff --git a/tests/Constraints/UndefinedConstraintTest.php b/tests/Constraints/UndefinedConstraintTest.php
index a996be26..b038eb91 100644
--- a/tests/Constraints/UndefinedConstraintTest.php
+++ b/tests/Constraints/UndefinedConstraintTest.php
@@ -69,6 +69,50 @@ public function getValidTests(): array
 JSON
                 ,
                 'checkMode' => Constraint::CHECK_MODE_COERCE_TYPES
+            ],
+            'anyOf with apply defaults should not affect value passed to each sub schema (#711)' => [
+                'input' => <<<JSON
+                    {
+                        "b": 2
+                    }
+JSON
+                ,
+                'schema' => <<<JSON
+                    {
+                        "anyOf": [
+                            {
+                                "required": [ "a" ],
+                      "properties": {
+                          "a": {
+                              "type": "integer"
+                          },
+                          "aDefault": {
+                              "type": "integer",
+                              "default": 1
+                          }
+                      },
+                      "type": "object",
+                      "additionalProperties": false
+                    },
+                    {
+                      "required": [ "b" ],
+                      "properties": {
+                          "b": {
+                              "type": "integer"
+                          },
+                          "bDefault": {
+                              "type": "integer",
+                              "default": 2
+                          }
+                      },
+                      "type": "object",
+                      "additionalProperties": false
+                    }
+                  ]
+                }
+JSON
+                ,
+                'checkMode' => Constraint::CHECK_MODE_APPLY_DEFAULTS
             ]
         ];
     }

From cc4449227b746f5d7ed2b3ce87521df3e1990b0a Mon Sep 17 00:00:00 2001
From: Danny van der Sluijs <danny.van.der.sluijs@infi.nl>
Date: Wed, 26 Feb 2025 14:43:34 +0100
Subject: [PATCH 2/2] docs: add changelog entry

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 54c0f46c..2365ad9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Add required permissions for welcome action ([#789](https://github.com/jsonrainbow/json-schema/pull/789))
 - Upgrade php cs fixer to latest ([#783](https://github.com/jsonrainbow/json-schema/pull/783))
 - Create deep copy before checking each sub schema in oneOf ([#791](https://github.com/jsonrainbow/json-schema/pull/791))
+- Create deep copy before checking each sub schema in anyOf ([#792](https://github.com/jsonrainbow/json-schema/pull/792))
 
 ### Changed
 - Used PHPStan's int-mask-of<T> type where applicable ([#779](https://github.com/jsonrainbow/json-schema/pull/779))