Running the fill_between_demo.py, if I zoom on figure 1 the fill_between shape disappears. Figure 2 and 3 instead zoom in correctly. It looks like this also happens when calling ax.set_xlim() in a python script, after fill_between has been called.

I am using matplotlib version 1.4.0 on Linux. This affects both python 2.7.8 and 3.4.1, and both Linux 32 bit and 64bit.

matplotlib 1.3.1 is not affected by this bug.