Fem: Prevent stop CalculiX immediately - fixes FreeCAD#12448

Author: marioalexis84

src/Mod/Fem/femtaskpanels/task_solver_ccxtools.py

@@ -101,12 +101,12 @@ def __init__(self, solver_object):
         QtCore.QObject.connect(
             self.form.pb_run_ccx,
             QtCore.SIGNAL("clicked()"),
-            self.runCalculix
+            self.stopCalculix
         )
         QtCore.QObject.connect(
             self.form.pb_run_ccx,
             QtCore.SIGNAL("clicked()"),
-            self.stopCalculix
+            self.runCalculix
         )
         QtCore.QObject.connect(
             self.form.rb_static_analysis,