matplotlib
diff --git a/‎lib/matplotlib/axes.py
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+4Lines changed: 4 additions & 0 deletions b/‎lib/matplotlib/axes.py
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diff --git a/‎lib/matplotlib/figure.py
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+9-2Lines changed: 9 additions & 2 deletions b/‎lib/matplotlib/figure.py
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+9-2Lines changed: 9 additions & 2 deletions
diff --git a/‎lib/matplotlib/tests/baseline_images/test_axes/errorbar_mixed.pdf
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diff --git a/‎lib/matplotlib/tests/baseline_images/test_axes/errorbar_mixed.png
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diff --git a/‎lib/matplotlib/tests/baseline_images/test_axes/errorbar_mixed.svg
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+167-74Lines changed: 167 additions & 74 deletions b/‎lib/matplotlib/tests/baseline_images/test_axes/errorbar_mixed.svg
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diff --git a/‎lib/matplotlib/tests/baseline_images/test_figure/figure_suptitle.pdf
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diff --git a/‎lib/matplotlib/tests/baseline_images/test_figure/figure_suptitle.png
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@@ -5384,6 +5384,8 @@ def errorbar(self, x, y, yerr=None, xerr=None,
                 lines_kw['lw'] = kwargs['lw']
         if 'transform' in kwargs:
             lines_kw['transform'] = kwargs['transform']
+        if 'alpha' in kwargs:
+            lines_kw['alpha'] = kwargs['alpha']
         if 'zorder' in kwargs:
             lines_kw['zorder'] = kwargs['zorder']
 
@@ -5440,6 +5442,8 @@ def xywhere(xs, ys, mask):
                 plot_kw['mew'] = kwargs['mew']
             if 'transform' in kwargs:
                 plot_kw['transform'] = kwargs['transform']
+            if 'alpha' in kwargs:
+                plot_kw['alpha'] = kwargs['alpha']
             if 'zorder' in kwargs:
                 plot_kw['zorder'] = kwargs['zorder']
 
 
@@ -319,6 +319,7 @@ def __init__(self,
 
         self._hold = rcParams['axes.hold']
         self.canvas = None
+        self._suptitle = None
 
         if subplotpars is None:
             subplotpars = SubplotParams()
@@ -491,8 +492,14 @@ def suptitle(self, t, **kwargs):
         if ('verticalalignment' not in kwargs) and ('va' not in kwargs):
             kwargs['verticalalignment'] = 'top'
 
-        t = self.text(x, y, t, **kwargs)
-        return t
+        sup = self.text(x, y, t, **kwargs)
+        if self._suptitle is not None:
+            self._suptitle.set_text(t)
+            self._suptitle.set_position((x, y))
+            self._suptitle.update_from(sup)
+        else:
+            self._suptitle = sup
+        return self._suptitle
 
     def set_canvas(self, canvas):
         """