From d0c32df3fed07c27be5446996b368a37cff36b4c Mon Sep 17 00:00:00 2001
From: hjk <hjk@qt.io>
Date: Thu, 10 Jun 2021 14:40:29 +0200
Subject: [PATCH] FakeVim: Don't create two handlers for one editor

Amends 206e9f95fb1.

Fixes: QTCREATORBUG-25770
Change-Id: I4028a7c8257ee3985fd2198e789d98b25901d92d
Reviewed-by: Eike Ziller <eike.ziller@qt.io>
---
 src/plugins/fakevim/fakevimplugin.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/plugins/fakevim/fakevimplugin.cpp b/src/plugins/fakevim/fakevimplugin.cpp
index 3c32384aa05..09148aa5793 100644
--- a/src/plugins/fakevim/fakevimplugin.cpp
+++ b/src/plugins/fakevim/fakevimplugin.cpp
@@ -1550,6 +1550,14 @@ void FakeVimPluginPrivate::editorOpened(IEditor *editor)
     if (!editor)
         return;
 
+    if (m_editorToHandler.contains(editor)) {
+        // We get here via the call from the duplicated handler in case
+        // it was triggered by triggerAction(Core::Constants::SPLIT).
+        // On the other hand, we need the path from there to support the
+        // case of manual calls to IEditor::duplicate().
+        return;
+    }
+
     QWidget *widget = editor->widget();
     if (!widget)
         return;