From 1c88dbbf4052d691a17cf783e3c5231784c2e0e8 Mon Sep 17 00:00:00 2001
From: Franziska Kunsmann <hi@kunsmann.eu>
Date: Sat, 23 Nov 2024 13:16:47 +0100
Subject: [PATCH] voctogui.lib.toolbar.preview: only set_command() if sources
 change

---
 voctogui/lib/toolbar/preview.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/voctogui/lib/toolbar/preview.py b/voctogui/lib/toolbar/preview.py
index 90616e42..23d7ff11 100644
--- a/voctogui/lib/toolbar/preview.py
+++ b/voctogui/lib/toolbar/preview.py
@@ -168,9 +168,10 @@ def set_command(self, command, do_test=True):
     def on_best(self, best, targetA, targetB):
         self.log.debug(f">on_best {best=} {targetA=} {targetB=}")
         c = self.command()
-        c.A = targetA
-        c.B = targetB
-        self.set_command(c, False)
+        if c.A != targetA or c.B != targetB:
+            c.A = targetA
+            c.B = targetB
+            self.set_command(c, False)
         self.update_glow()
         self.log.debug(f"<on_best {best=} {targetA=} {targetB=}")