Fix #63379 - Don't reset mod_user_is_open in destroy

The parent handler is still open so the reset here was in error.

ext/session/mod_user_class.c

@@ -121,7 +121,6 @@ PHP_METHOD(SessionHandler, destroy)
 		return;
 	}
 
-	PS(mod_user_is_open) = 0;
 	RETVAL_BOOL(SUCCESS == PS(default_mod)->s_destroy(&PS(mod_data), key TSRMLS_CC));
 }
 /* }}} */

ext/session/tests/bug63379.phpt

@@ -0,0 +1,57 @@
+--TEST--
+Bug #63379: Warning when using session_regenerate_id(TRUE) with a SessionHandler
+--INI--
+session.save_handler=files
+session.name=PHPSESSID
+--SKIPIF--
+<?php include('skipif.inc'); ?>
+--FILE--
+<?php
+
+ob_start();
+
+$handler = new SessionHandler;
+session_set_save_handler($handler);
+
+session_start();
+
+$_SESSION['foo'] = 'hello';
+var_dump($_SESSION);
+
+session_regenerate_id(true);
+
+echo "*** Regenerated ***\n";
+var_dump($_SESSION);
+
+$_SESSION['bar'] = 'world';
+
+var_dump($_SESSION);
+
+session_write_close();
+session_unset();
+
+session_start();
+var_dump($_SESSION);
+
+--EXPECTF--
+array(1) {
+  ["foo"]=>
+  string(5) "hello"
+}
+*** Regenerated ***
+array(1) {
+  ["foo"]=>
+  string(5) "hello"
+}
+array(2) {
+  ["foo"]=>
+  string(5) "hello"
+  ["bar"]=>
+  string(5) "world"
+}
+array(2) {
+  ["foo"]=>
+  string(5) "hello"
+  ["bar"]=>
+  string(5) "world"
+}

ext/session/tests/bug63379_nodestroy.phpt

@@ -0,0 +1,57 @@
+--TEST--
+Bug #63379: Warning when using session_regenerate_id(TRUE) with a SessionHandler
+--INI--
+session.save_handler=files
+session.name=PHPSESSID
+--SKIPIF--
+<?php include('skipif.inc'); ?>
+--FILE--
+<?php
+
+ob_start();
+
+$handler = new SessionHandler;
+session_set_save_handler($handler);
+
+session_start();
+
+$_SESSION['foo'] = 'hello';
+var_dump($_SESSION);
+
+session_regenerate_id(false);
+
+echo "*** Regenerated ***\n";
+var_dump($_SESSION);
+
+$_SESSION['bar'] = 'world';
+
+var_dump($_SESSION);
+
+session_write_close();
+session_unset();
+
+session_start();
+var_dump($_SESSION);
+
+--EXPECTF--
+array(1) {
+  ["foo"]=>
+  string(5) "hello"
+}
+*** Regenerated ***
+array(1) {
+  ["foo"]=>
+  string(5) "hello"
+}
+array(2) {
+  ["foo"]=>
+  string(5) "hello"
+  ["bar"]=>
+  string(5) "world"
+}
+array(2) {
+  ["foo"]=>
+  string(5) "hello"
+  ["bar"]=>
+  string(5) "world"
+}