From 0f51c3b01bdafc7f8ad2ece4aacef089f952e884 Mon Sep 17 00:00:00 2001
From: w0rp <devw0rp@gmail.com>
Date: Wed, 4 Jan 2023 15:13:21 +0000
Subject: [PATCH] Fix #4410 - Ignore prop_add errors

---
 autoload/ale/virtualtext.vim | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/autoload/ale/virtualtext.vim b/autoload/ale/virtualtext.vim
index a96a1f1d..3ef82680 100644
--- a/autoload/ale/virtualtext.vim
+++ b/autoload/ale/virtualtext.vim
@@ -169,7 +169,8 @@ function! ale#virtualtext#ShowMessage(buffer, item) abort
             call add(s:hl_list, l:hl_group)
         endif
 
-        call prop_add(l:line, 0, {
+        " We ignore all errors from prop_add.
+        silent! call prop_add(l:line, 0, {
         \   'type': l:hl_group,
         \   'text': ' ' . l:msg,
         \   'bufnr': a:buffer,