Forward *args in MantidAxes.plot command

Refs #24000

Framework/PythonInterface/mantid/plots/plotfunctions.py

@@ -133,7 +133,7 @@ def plot(axes, workspace, *args, **kwargs):
     dimension
     """
     x, y, args, kwargs = _plot_impl(axes, workspace, args, kwargs)
-    return axes.plot(x, y, **kwargs)
+    return axes.plot(x, y, *args, **kwargs)
 
 
 def errorbar(axes, workspace, *args, **kwargs):

Framework/PythonInterface/test/python/mantid/plots/plots__init__Test.py

@@ -47,7 +47,8 @@ class Plots__init__Test(unittest.TestCase):
         self.fig, self.ax = None, None
 
     def test_line2d_plots(self):
-        self.ax.plot(self.ws2d_histo, specNum=2, linewidth=6)
+        self.ax.plot(self.ws2d_histo, 'rs', specNum=2, linewidth=6)
+        self.assertEqual('r', self.ax.lines[-1].get_color())
         self.ax.plot(np.arange(10), np.arange(10), 'bo-')
 
     def test_errorbar_plots(self):