# HG changeset patch
# User Bram Moolenaar <Bram@vim.org>
# Date 1676735103 -3600
# Node ID c1b076c53a38a0898cbaef59c0abb75b3c06a29b
# Parent  1faf76a9e05d47f4d30e24c9f596f0d756480dba
patch 9.0.1321: vimscript test fails where using {expr} syntax

Commit: https://github.com/vim/vim/commit/d114975b9bec30ec1486ebc70db6b802d0f1cfb8
Author: Bram Moolenaar <Bram@vim.org>
Date:   Sat Feb 18 15:31:53 2023 +0000

    patch 9.0.1321: vimscript test fails where using {expr} syntax

    Problem:    vimscript test fails where using {expr} syntax.
    Solution:   Only return FCERR_FAILED in call_user_func() for Vim9 script.

diff --git a/src/userfunc.c b/src/userfunc.c
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -3060,7 +3060,11 @@ call_user_func(
 	clear_tv(rettv);
 	rettv->v_type = VAR_NUMBER;
 	rettv->vval.v_number = -1;
-	retval = FCERR_FAILED;
+
+	// In corner cases returning a "failed" value is not backwards
+	// compatible.  Only do this for Vim9 script.
+	if (in_vim9script())
+	    retval = FCERR_FAILED;
     }
 
 #ifdef FEAT_PROFILE
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1321,
+/**/
     1320,
 /**/
     1319,