[chronojump] Fixed: ForceSensorExercise edit shows the correct value of added mass

[Xavier de Blas <xaviblas src gnome org>]

commit 7660fd677c1d23ce9a3d776f0866e31de986714f
Author: Xavier de Blas <xaviblas gmail com>
Date:   Mon Jan 3 18:12:06 2022 +0100

    Fixed: ForceSensorExercise edit shows the correct value of added mass

 src/gui/forceSensorExercise.cs | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)
---
diff --git a/src/gui/forceSensorExercise.cs b/src/gui/forceSensorExercise.cs
index 6965645ef..8883b5f30 100644
--- a/src/gui/forceSensorExercise.cs
+++ b/src/gui/forceSensorExercise.cs
@@ -225,7 +225,7 @@ public class ForceSensorExerciseWindow
                                        Convert.ToInt32(em), Convert.ToInt32(cm));
                }
 
-               ForceSensorExerciseWindowBox.initializeGuiAtShow();
+               ForceSensorExerciseWindowBox.initializeGuiAtShow(false);
                ForceSensorExerciseWindowBox.force_sensor_exercise.Show ();
 
                return ForceSensorExerciseWindowBox;
@@ -256,7 +256,7 @@ public class ForceSensorExerciseWindow
                                prefsForceSensorElasticEccMinDispl, prefsForceSensorElasticConMinDispl,
                                prefsForceSensorNotElasticEccMinForce, prefsForceSensorNotElasticConMinForce);
 
-               ForceSensorExerciseWindowBox.initializeGuiAtShow();
+               ForceSensorExerciseWindowBox.initializeGuiAtShow(true);
                ForceSensorExerciseWindowBox.force_sensor_exercise.Show ();
 
                return ForceSensorExerciseWindowBox;
@@ -296,11 +296,14 @@ public class ForceSensorExerciseWindow
                image_force_exerted_help.Pixbuf = new Pixbuf (null, Util.GetImagePath(false) + 
"image_info.png");
        }
 
-       private void initializeGuiAtShow()
+       private void initializeGuiAtShow (bool adding)
        {
                managePage(Pages.FORCE);
                ForceSensorExerciseWindowBox.notebook_main.CurrentPage = Convert.ToInt32(Pages.FORCE);
-               spin_body_mass_add.Value = 100;
+
+               //on edit spin_body_mass_add.Value is set at exerciseToGUI(), but on adding, set at 100
+               if(adding)
+                       spin_body_mass_add.Value = 100;
        }
 
        private void exerciseToGUI()