From ef0e303235c03811eb29bc17e71f22ebdce95356 Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Sun, 19 Sep 2021 18:06:47 +0200
Subject: [PATCH] App: handle empty, . or .. as parent directory

---
 src/App/Document.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/App/Document.cpp b/src/App/Document.cpp
index aa099d216a..3abcde08b5 100644
--- a/src/App/Document.cpp
+++ b/src/App/Document.cpp
@@ -2614,7 +2614,9 @@ bool Document::saveToFile(const char* filename) const
     }
     Base::FileInfo tmp(fn);
     // In case some folders in the path do not exist
-    fs::create_directories(fs::path(filename).parent_path());
+    fs::path parent = fs::path(filename).parent_path();
+    if (!parent.empty() && !parent.filename_is_dot() && !parent.filename_is_dot_dot())
+        fs::create_directories(parent);
 
     // open extra scope to close ZipWriter properly
     {