diff --git a/src/Type/Accessory/AccessoryArrayListType.php b/src/Type/Accessory/AccessoryArrayListType.php
index 6042d14ced..ff3536f473 100644
--- a/src/Type/Accessory/AccessoryArrayListType.php
+++ b/src/Type/Accessory/AccessoryArrayListType.php
@@ -162,10 +162,6 @@ public function setOffsetValueType(?Type $offsetType, Type $valueType, bool $uni
 
 	public function setExistingOffsetValueType(Type $offsetType, Type $valueType): Type
 	{
-		if ($this->hasOffsetValueType($offsetType)->no()) {
-			return new ErrorType();
-		}
-
 		return $this;
 	}
 
diff --git a/tests/PHPStan/Analyser/nsrt/bug-13629.php b/tests/PHPStan/Analyser/nsrt/bug-13629.php
deleted file mode 100644
index 621b4169bb..0000000000
--- a/tests/PHPStan/Analyser/nsrt/bug-13629.php
+++ /dev/null
@@ -1,37 +0,0 @@
-<?php declare(strict_types = 1);
-
-namespace Bug13629;
-
-use function PHPStan\Testing\assertType;
-
-/**
- * @param array<string, list<array{xmlNamespace: string, namespace: string, name: string}>> $xsdFiles
- * @param array<string, list<array{xmlNamespace: string, namespace: string, name: string}>> $groupedByNamespace
- * @param array<string, list<string>> $extraNamespaces
- */
-function test(array $xsdFiles, array $groupedByNamespace, array $extraNamespaces): void {
-	foreach ($extraNamespaces as $mergedNamespace) {
-		if (count($mergedNamespace) < 2) {
-			continue;
-		}
-
-		$targetNamespace = end($mergedNamespace);
-		if (!isset($groupedByNamespace[$targetNamespace])) {
-			continue;
-		}
-		$xmlNamespace = $groupedByNamespace[$targetNamespace][0]['xmlNamespace'];
-
-		assertType('string', $xmlNamespace);
-		assertType('non-empty-list<string>&hasOffsetValue(1, string)', $mergedNamespace);
-
-		$xsdFiles[$xmlNamespace] = [];
-		foreach ($mergedNamespace as $namespace) {
-			foreach ($groupedByNamespace[$namespace] ?? [] as $viewHelper) {
-				$xsdFiles[$xmlNamespace][$viewHelper['name']] = $viewHelper;
-			}
-		}
-		// After assigning with string keys ($viewHelper['name']), $xsdFiles[$xmlNamespace] should NOT be a list
-		assertType('array<int<0, max>, array{xmlNamespace: string, namespace: string, name: string}>', $xsdFiles[$xmlNamespace]);
-		$xsdFiles[$xmlNamespace] = array_values($xsdFiles[$xmlNamespace]);
-	}
-}
diff --git a/tests/PHPStan/Rules/Functions/ArrayValuesRuleTest.php b/tests/PHPStan/Rules/Functions/ArrayValuesRuleTest.php
index 37cb87b0f0..1f3e273b16 100644
--- a/tests/PHPStan/Rules/Functions/ArrayValuesRuleTest.php
+++ b/tests/PHPStan/Rules/Functions/ArrayValuesRuleTest.php
@@ -89,9 +89,4 @@ public function testFile(): void
 		$this->analyse([__DIR__ . '/data/array_values_list.php'], $expectedErrors);
 	}
 
-	public function testBug13629(): void
-	{
-		$this->analyse([__DIR__ . '/../../Analyser/nsrt/bug-13629.php'], []);
-	}
-
 }