Error with bar plot and no data

[Acanthostega]

Hi everyone,

generating an empty bar plot with the current master branch of the repo creates an error:

ValueError: incompatible sizes: argument 'tick_label' must be length 0 or string

For the code example:

import matplotlib.pyplot as plt

fig = plt.figure()
ax = fig.add_subplot(111)
ax.bar([], [])

With the 1.4.3 version of matplotlib from pip the code is working but not with the master branch. Is this now a normal behaviour ?

[tacaswell]

This is the SCCE fixed by #4946.

[jenshnielsen]

Closed by #5239