From adf87dbe9ff0162e4d28be295f686eb4ab89cd19 Mon Sep 17 00:00:00 2001
From: Adam Fourney <adamfo@microsoft.com>
Date: Fri, 28 Feb 2025 00:52:24 -0800
Subject: [PATCH] Fixed extensions getting randomized.

---
 src/markitdown/_markitdown.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/markitdown/_markitdown.py b/src/markitdown/_markitdown.py
index 425308f..2f8d141 100644
--- a/src/markitdown/_markitdown.py
+++ b/src/markitdown/_markitdown.py
@@ -1701,8 +1701,6 @@ class MarkItDown:
     def _convert(
         self, local_path: str, extensions: List[Union[str, None]], **kwargs
     ) -> DocumentConverterResult:
-        # Deduplicate the list of extensions
-        extensions = list(set(extensions))
 
         error_trace = ""
         for ext in extensions + [None]:  # Try last with no extension
@@ -1766,6 +1764,8 @@ class MarkItDown:
         ext = ext.strip()
         if ext == "":
             return
+        if ext in extensions:
+            return
         # if ext not in extensions:
         extensions.append(ext)