Bug report

In the following code, when semilogy is fed data with NaN, the title does not appear.

Bug summary

Code for reproduction

import numpy as np
import matplotlib.pyplot as plt
import matplotlib as mpl

x = np.array ([0, 1, 2, 3])
y = np.array ([10, np.nan, 8, np.nan])
fig, ax = plt.subplots(constrained_layout=True)#, sharex=True)
ax.semilogy (x, y, 'x-')
ax.set_title('test')
plt.show()

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Actual outcome

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Expected outcome

Matplotlib version

• Operating system: linux fedora 29
• Matplotlib version: 3.0.1
• Matplotlib backend (print(matplotlib.get_backend())): module://mplcairo.qt
• Python version: 3.7.1
• Jupyter version (if applicable):
• Other libraries: