Bug summary

Adding a title to a colorbar works fine in most cases, but misplaces the title text when using extend=max as argument to plt.colorbar().

Code for reproduction

fig, ax = plt.subplots(figsize=(6,6))
x, y, z = [np.random.random(100) for i in range(3)]

scatter = ax.scatter(x, y, c=z)
cbar = plt.colorbar(scatter, extend="max", ax=ax)
cbar.ax.set_title("asdf")

Actual outcome

Expected outcome

I would expect the title text to be above the colorbar including the arrow. This is what happens when running the above code but without extend="max":

fig, ax = plt.subplots(figsize=(6,6))
x, y, z = [np.random.random(100) for i in range(3)]

scatter = ax.scatter(x, y, c=z)
cbar = plt.colorbar(scatter, ax=ax)
cbar.ax.set_title("asdf")

Additional information

Aesthetically, this is less of an issue with smaller figure sizes but it should generally place the text in the right place irrespective of figure dimensions.

Operating system

No response

Matplotlib Version

3.5.1

Matplotlib Backend

No response

Python version

No response

Jupyter version

No response

Installation

No response