Results: Select solver for last results also if the results path exists.

src/View/MainWindow.py

@@ -1697,6 +1697,11 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
 
         return workdir
 
+    def is_solver_workdir_exists(self, solver, scenario=None):
+        return os.path.exists(
+            self._solver_workdir(solver, scenario)
+        )
+
     def open_last_results(self):
         if self._last_solver is None:
             return
@@ -1707,9 +1712,14 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
             self, self._trad['Solver'],
             self._trad['Solver'] + ":",
             list(
-                map(lambda s: s.name,
-                    filter(lambda s: s._type in solver_type,
-                           self.conf.solvers))
+                map(
+                    lambda s: s.name,
+                    filter(
+                        lambda s: (self.is_solver_workdir_exists(s)
+                                   or s._type in solver_type),
+                        self.conf.solvers
+                    )
+                )
             )
         )
         if not ok: