From 3ff244f7a046af0916d6cdc4186a4fc4602741ad Mon Sep 17 00:00:00 2001
From: Guilherme Goncalves <inacio.guilherme@gmail.com>
Date: Fri, 12 Feb 2021 16:28:19 -0300
Subject: [PATCH] Update lines with zero height on sidediv

Avoid evaluation of `0` height as false within `if` condition,
since it is possible having 0px as line-height.
---
 src/static/js/ace2_inner.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/static/js/ace2_inner.js b/src/static/js/ace2_inner.js
index 72fb9400f..a11c489b5 100644
--- a/src/static/js/ace2_inner.js
+++ b/src/static/js/ace2_inner.js
@@ -3858,7 +3858,7 @@ function Ace2Inner() {
     // Apply height to existing sidediv lines
     currentLine = 0;
     while (sidebarLine && currentLine <= lineNumbersShown) {
-      if (lineHeights[currentLine]) {
+      if (lineHeights[currentLine] != null) {
         sidebarLine.style.height = `${lineHeights[currentLine]}px`;
       }
       sidebarLine = sidebarLine.nextSibling;