From 819de9ccad8ff3234808714965c090aaa61d1e9a Mon Sep 17 00:00:00 2001
From: "qing.zhang" <qing.zhang@bambulab.com>
Date: Wed, 28 Aug 2024 19:43:40 +0800
Subject: [PATCH] FIX: SSDA cause arachne print fail

Jira: none

Signed-off-by: qing.zhang <qing.zhang@bambulab.com>
Change-Id: Ibf75f66db1edaad7cb1b45f999751143442869fc
---
 src/libslic3r/GCode.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/libslic3r/GCode.cpp b/src/libslic3r/GCode.cpp
index 3de03f953..9341ca582 100644
--- a/src/libslic3r/GCode.cpp
+++ b/src/libslic3r/GCode.cpp
@@ -4569,8 +4569,10 @@ ExtrusionPaths GCode::merge_same_speed_paths(const ExtrusionPaths &paths)
 
         // 100% overhang speed will not to set smooth speed
         if (path.role() == erOverhangPerimeter) {
-            if (!merge_path.empty())
+            if (!merge_path.empty()) {
                 output_paths.push_back(std::move(merge_path));
+                merge_path.polyline.clear();
+            }
             output_paths.push_back(std::move(path));
             merge_start = path_idx + 1;
             continue;