From c8d84ffc77839d40aa441507cc393963f0564f00 Mon Sep 17 00:00:00 2001
From: hasezoey <hasezoey@gmail.com>
Date: Fri, 16 Sep 2022 17:45:42 +0200
Subject: [PATCH] Version::getShortVersion: handle "rev" being empty (#9502)

In which case we reply "unknown" instead of an empty string ;).
---
 frontend/version.lua | 1 +
 1 file changed, 1 insertion(+)

diff --git a/frontend/version.lua b/frontend/version.lua
index 702949c2f..67917ef09 100644
--- a/frontend/version.lua
+++ b/frontend/version.lua
@@ -55,6 +55,7 @@ end
 function Version:getShortVersion()
     if not self.short then
         local rev = self:getCurrentRevision()
+        if (not rev or rev == "") then return "unknown" end
         local year, month, point, revision = rev:match("v(%d%d%d%d)%.(%d%d)%.?(%d?%d?)-?(%d*)")
         self.short = year .. "." .. month
         if point and point ~= "" then