From 004b23e362e38154197401148224565f1ad5f305 Mon Sep 17 00:00:00 2001
From: bubnikv <bubnikv@gmail.com>
Date: Fri, 21 Feb 2020 11:03:03 +0100
Subject: [PATCH] Fix of Bug: Changing print settings resets filament settings
 #3675 When switching a Print profile, the modifications of an active Filament
 profile were incorrecly dropped even if the active Filament profile was
 compatible with the newly selected Print profile.

---
 src/slic3r/GUI/Tab.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/slic3r/GUI/Tab.cpp b/src/slic3r/GUI/Tab.cpp
index e0cfe5be6..541be423d 100644
--- a/src/slic3r/GUI/Tab.cpp
+++ b/src/slic3r/GUI/Tab.cpp
@@ -2795,7 +2795,7 @@ void Tab::select_preset(std::string preset_name, bool delete_current)
         if (! canceled) {
             // The preset will be switched to a different, compatible preset, or the '-- default --'.
             m_dependent_tabs.emplace_back((printer_technology == ptFFF) ? Preset::Type::TYPE_FILAMENT : Preset::Type::TYPE_SLA_MATERIAL);
-            if (old_preset_dirty)
+            if (old_preset_dirty && ! new_preset_compatible)
                 dependent.discard_current_changes();
         }
     } else if (printer_tab) {