diff --git a/Zend/tests/bug63462.phpt b/Zend/tests/bug63462.phpt
index 45c9507bbac58..f0a285548e39a 100644
--- a/Zend/tests/bug63462.phpt
+++ b/Zend/tests/bug63462.phpt
@@ -67,6 +67,5 @@ __isset publicProperty
 __isset protectedProperty
 __isset privateProperty
 __set nonExisting
-__set publicProperty
 __set protectedProperty
 __set privateProperty
diff --git a/Zend/tests/bug78226.phpt b/Zend/tests/bug78226.phpt
new file mode 100644
index 0000000000000..fb83c7f4036b8
--- /dev/null
+++ b/Zend/tests/bug78226.phpt
@@ -0,0 +1,30 @@
+--TEST--
+Bug #78226: Unexpected __set behavior with typed properties
+--FILE--
+<?php
+
+class Test {
+    public int $prop1;
+    public $prop2;
+
+    public function __set($name, $val) {
+        echo "__set($name, $val)\n";
+    }
+}
+
+$test = new Test;
+unset($test->prop2);
+
+$test->prop1 = 1;
+$test->prop2 = 2;
+
+var_dump($test);
+
+?>
+--EXPECT--
+object(Test)#1 (2) {
+  ["prop1"]=>
+  int(1)
+  ["prop2"]=>
+  int(2)
+}
diff --git a/Zend/zend_object_handlers.c b/Zend/zend_object_handlers.c
index 65aefb6aec6c0..ca350bc84b6b3 100644
--- a/Zend/zend_object_handlers.c
+++ b/Zend/zend_object_handlers.c
@@ -819,23 +819,21 @@ ZEND_API zval *zend_std_write_property(zval *object, zval *member, zval *value,
 
 	if (EXPECTED(IS_VALID_PROPERTY_OFFSET(property_offset))) {
 		variable_ptr = OBJ_PROP(zobj, property_offset);
-		if (Z_TYPE_P(variable_ptr) != IS_UNDEF) {
-			Z_TRY_ADDREF_P(value);
+		Z_TRY_ADDREF_P(value);
 
-			if (UNEXPECTED(prop_info)) {
-				ZVAL_COPY_VALUE(&tmp, value);
-				if (UNEXPECTED(!zend_verify_property_type(prop_info, &tmp, EG(current_execute_data) && ZEND_CALL_USES_STRICT_TYPES(EG(current_execute_data))))) {
-					Z_TRY_DELREF_P(value);
-					variable_ptr = &EG(error_zval);
-					goto exit;
-				}
-				value = &tmp;
+		if (UNEXPECTED(prop_info)) {
+			ZVAL_COPY_VALUE(&tmp, value);
+			if (UNEXPECTED(!zend_verify_property_type(prop_info, &tmp, EG(current_execute_data) && ZEND_CALL_USES_STRICT_TYPES(EG(current_execute_data))))) {
+				Z_TRY_DELREF_P(value);
+				variable_ptr = &EG(error_zval);
+				goto exit;
 			}
+			value = &tmp;
+		}
 
 found:
-			zend_assign_to_variable(variable_ptr, value, IS_TMP_VAR, EG(current_execute_data) && ZEND_CALL_USES_STRICT_TYPES(EG(current_execute_data)));
-			goto exit;
-		}
+		zend_assign_to_variable(variable_ptr, value, IS_TMP_VAR, EG(current_execute_data) && ZEND_CALL_USES_STRICT_TYPES(EG(current_execute_data)));
+		goto exit;
 	} else if (EXPECTED(IS_DYNAMIC_PROPERTY_OFFSET(property_offset))) {
 		if (EXPECTED(zobj->properties != NULL)) {
 			if (UNEXPECTED(GC_REFCOUNT(zobj->properties) > 1)) {
diff --git a/tests/classes/unset_properties.phpt b/tests/classes/unset_properties.phpt
index 417542ddea91a..f403807a1983c 100644
--- a/tests/classes/unset_properties.phpt
+++ b/tests/classes/unset_properties.phpt
@@ -132,22 +132,22 @@ true
 __isset "publicProperty"
 __get "publicProperty"
 __get "publicProperty"
-__set "publicProperty" to "new publicProperty value via setter"
+
 new publicProperty value via setter
-__set "publicProperty" to "new publicProperty value via public access"
+
 true
 new publicProperty value via public access
 
 protectedProperty set
 __isset "protectedProperty"false
 __get "protectedProperty"
-__set "protectedProperty" to "new protectedProperty value via setter"
+
 __isset "protectedProperty"true
 new protectedProperty value via setter
 
 privateProperty set
 __isset "privateProperty"false
 __get "privateProperty"
-__set "privateProperty" to "new privateProperty value via setter"
+
 __isset "privateProperty"true
 new privateProperty value via setter