From 69af5a1f96df84efb38976c4529e6edd87ef4573 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20Vay=C3=A1?= <guivaya@gmail.com>
Date: Sun, 15 Dec 2019 23:16:43 +0100
Subject: [PATCH] [MM-20659] Fixing msi upgrade process (#1115)

---
 scripts/msi_installer.wxs | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/scripts/msi_installer.wxs b/scripts/msi_installer.wxs
index 1c0a21a7..23bab276 100644
--- a/scripts/msi_installer.wxs
+++ b/scripts/msi_installer.wxs
@@ -53,8 +53,7 @@
     <?if $(var.Platform) != x64 ?>
     <Condition Message="!(loc.Requires32Bit)"><![CDATA[NOT VersionNT64]]></Condition>
     <?endif ?>
-    <!--<MajorUpgrade
-      DowngradeErrorMessage="A later version of [ProductName] is already installed. Setup will now exit." />-->
+    <MajorUpgrade AllowDowngrades="yes" />
     <!-- Retrieve previous installation path -->
     <Property Id="INSTALLDIR">
       <RegistrySearch Id="DetermineInstallLocation" Type="raw" Root="HKLM" Key="Software\Mattermost\Desktop" Name="InstallLocation" Win64="$(var.Win64)" />
@@ -127,7 +126,6 @@
     <InstallExecuteSequence>
       <Custom Action="KillApp" Before="InstallValidate" />
       <Custom Action="LaunchApp" After="InstallFinalize">Installed</Custom>
-      <RemoveExistingProducts After="InstallFinalize" />
     </InstallExecuteSequence>
     <CustomAction Id="LaunchApp" FileKey="MattermostDesktopEXE" ExeCommand="" Return="asyncNoWait" />
     <CustomAction Id="KillApp" Directory="INSTALLDIR" Return="ignore" ExeCommand="&quot;[SystemFolder]taskkill.exe&quot; /F /IM &quot;Mattermost.exe&quot;" />