Merge branch 'PHP-7.4'

* PHP-7.4:
  Fixed bug #79600

Zend/tests/generators/bug79600.phpt

@@ -0,0 +1,24 @@
+--TEST--
+Bug #79600: Regression in 7.4.6 when yielding an array based generator
+--FILE--
+<?php
+
+function createArrayGenerator() {
+    yield from [
+        1,
+        2,
+    ];
+}
+
+function createGeneratorFromArrayGenerator() {
+    yield from createArrayGenerator();
+}
+
+foreach (createGeneratorFromArrayGenerator() as $value) {
+    echo $value, "\n";
+}
+
+?>
+--EXPECT--
+1
+2

Zend/zend_generators.c

@@ -729,6 +729,7 @@ try_again:
 
 	if (UNEXPECTED(!Z_ISUNDEF(generator->values))) {
 		if (EXPECTED(zend_generator_get_next_delegated_value(generator) == SUCCESS)) {
+			orig_generator->flags &= ~ZEND_GENERATOR_DO_INIT;
 			return;
 		}
 		/* If there are no more deletegated values, resume the generator