Fixed bug #67169: []= after_array_splice incorrect

This fixes a regression I introduced in beta 1.

NEWS

@@ -2,6 +2,10 @@ PHP                                                                        NEWS
 |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 ?? ??? 2014, PHP 5.6.0 Beta 3
 
+- Core:
+  . Fixed bug #67169 (array_splice all elements, then []= gives wrong index).
+    (Nikita)
+
 01 May 2014, PHP 5.6.0 Beta 2
 
 - CLI server:

Zend/tests/bug67169.phpt

@@ -0,0 +1,26 @@
+--TEST--
+Bug #67169: array_splice all elements, then []= gives wrong index
+--FILE--
+<?php
+
+$array = array('a', 'b');
+array_splice($array, 0, 2);
+$array[] = 'c';
+var_dump($array);
+
+$array = array('a', 'b');
+array_shift($array);
+array_shift($array);
+$array[] = 'c';
+var_dump($array);
+
+?>
+--EXPECT--
+array(1) {
+  [0]=>
+  string(1) "c"
+}
+array(1) {
+  [0]=>
+  string(1) "c"
+}

Zend/zend_hash.c

@@ -487,6 +487,7 @@ ZEND_API void zend_hash_reindex(HashTable *ht, zend_bool only_integer_keys) {
 
 	IS_CONSISTENT(ht);
 	if (UNEXPECTED(ht->nNumOfElements == 0)) {
+		ht->nNextFreeElement = 0;
 		return;
 	}