From a49b8927088cde075c8ccfc7dcaf1bedc3b52af9 Mon Sep 17 00:00:00 2001
From: Kiss Lorand <50251547+kisslorand@users.noreply.github.com>
Date: Fri, 11 Sep 2026 00:23:31 +0300
Subject: [PATCH] Fix bridge flow invalidation for zero-gap supports (#15626)

---
 src/libslic3r/PrintObject.cpp | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/src/libslic3r/PrintObject.cpp b/src/libslic3r/PrintObject.cpp
index 720a2cdade..54378b3b16 100644
--- a/src/libslic3r/PrintObject.cpp
+++ b/src/libslic3r/PrintObject.cpp
@@ -1511,13 +1511,9 @@ bool PrintObject::invalidate_state_by_config_options(
             steps.emplace_back(posPerimeters);
             steps.emplace_back(posSupportMaterial);
         } else if (opt_key == "bridge_flow" || opt_key == "internal_bridge_flow") {
-            if (m_config.support_top_z_distance > 0.) {
-            	// Only invalidate due to bridging if bridging is enabled.
-            	// If later "support_top_z_distance" is modified, the complete PrintObject is invalidated anyway.
-            	steps.emplace_back(posPerimeters);
-            	steps.emplace_back(posInfill);
-	            steps.emplace_back(posSupportMaterial);
-	        }
+            steps.emplace_back(posPerimeters);
+            steps.emplace_back(posInfill);
+            steps.emplace_back(posSupportMaterial);
         } else if (
                 opt_key == "wall_generator"
             || opt_key == "wall_transition_length"