From 0d6a459b60cdcd3fb552bcba546a40218b86a9fa Mon Sep 17 00:00:00 2001
From: Raymond Hill <rhill@raymondhill.net>
Date: Tue, 29 Mar 2022 09:49:17 -0400
Subject: [PATCH] Discard duplicate lines when merging imported directives

Related feedback:
- https://www.reddit.com/r/uBlockOrigin/comments/tqwl4s/import_of_the_reliable_sites/
---
 src/js/whitelist.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/js/whitelist.js b/src/js/whitelist.js
index afd07bec8..e18e14afa 100644
--- a/src/js/whitelist.js
+++ b/src/js/whitelist.js
@@ -178,9 +178,11 @@ const handleImportFilePicker = function() {
     const fr = new FileReader();
     fr.onload = ev => {
         if ( ev.type !== 'load' ) { return; }
-        setEditorText(
-            [ getEditorText().trim(), fr.result.trim() ].join('\n').trim()
+        const content = uBlockDashboard.mergeNewLines(
+            getEditorText().trim(),
+            fr.result.trim()
         );
+        setEditorText(content);
     };
     fr.readAsText(file);
 };