[Matplotlib-users] Alpha values not preserved with Ellipse and PatchCollection

Hello,

The following code should produce identical plots, but in the second  
case the alpha value is ignored:

---

import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as mpl
from matplotlib.patches import Ellipse
from matplotlib.collections import PatchCollection

fig = mpl.figure()
ax = fig.add_subplot(111)
ax.add_patch(Ellipse((0.5,0.5),0.7,0.3,angle=30,alpha=0.3))
fig.savefig('test1.png')

fig = mpl.figure()
ax = fig.add_subplot(111)
ax.add_collection(PatchCollection([Ellipse((0.5,0.5), 
0.7,0.3,angle=30,alpha=0.3)],match_original=True))
fig.savefig('test2.png

---

Is this a bug? I'm using the latest svn version of matplotlib.

Thanks,

Thomas