From d8df9afad62a9a4beb4ec607f8e10d674de66dbe Mon Sep 17 00:00:00 2001
From: zeertzjq <zeertzjq@outlook.com>
Date: Mon, 25 Jul 2022 18:11:37 +0800
Subject: vim-patch:8.2.2969: subtracting from number option fails when result
 is zero

Problem:    Subtracting from number option fails when result is zero. (Ingo
            Karkat)
Solution:   Reset the string value when using the numeric value.
            (closes vim/vim#8351)
https://github.com/vim/vim/commit/a42e6e0082a6d564dbfa55317d4a698ac12ae898

Cherry-pick Test_compound_assignment_operators() changes from patch 8.2.1593
---
 src/nvim/eval/vars.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/nvim/eval/vars.c')

diff --git a/src/nvim/eval/vars.c b/src/nvim/eval/vars.c
index a0141402bc..152d1c3e00 100644
--- a/src/nvim/eval/vars.c
+++ b/src/nvim/eval/vars.c
@@ -663,6 +663,7 @@ static char *ex_let_one(char *arg, typval_T *const tv, const bool copy, const bo
             case '%':
               n = num_modulus(numval, n); break;
             }
+            s = NULL;
           } else if (opt_type == gov_string && stringval != NULL && s != NULL) {
             // string
             char *const oldstringval = stringval;
-- 
cgit