branches/5.1: Fix for Bug#35602, "Failed to read auto-increment value from

storage engine". The test for REPLACE was an error of ommission since it's
classified as a simple INSERT. For REPLACE statements we don't acquire
the special AUTOINC lock for AUTOINC_NEW_STYLE_LOCKING with this fix.

handler/ha_innodb.cc

@@ -3277,7 +3277,8 @@ ha_innobase::innobase_autoinc_lock(void)
 		old style only if another transaction has already acquired
 		the AUTOINC lock on behalf of a LOAD FILE or INSERT ... SELECT
 		etc. type of statement. */
-		if (thd_sql_command(user_thd) == SQLCOM_INSERT) {
+		if (thd_sql_command(user_thd) == SQLCOM_INSERT
+		    || thd_sql_command(user_thd) == SQLCOM_REPLACE) {
 			dict_table_t*	table = prebuilt->table;
 
 			/* Acquire the AUTOINC mutex. */