Bug summary

When I plot quiverkey with subplot option projection='aitoff' and quiver option angle='xy', the quiverkey is then showing multiple arrows pointing at different directions.

Code for reproduction

import matplotlib.pyplot as plt
import numpy as np

x = np.linspace(-np.pi, np.pi, 11)
y = np.ones_like(x) * np.pi / 6
vx = np.zeros_like(x)
vy = np.ones_like(x)

fig = plt.figure()
ax = fig.add_subplot(projection='aitoff')
q = ax.quiver(x, y, vx, vy, angles='xy')
ax.quiverkey(q, 0, 0, 1, '1 units')
ax.grid()
plt.show()

Actual outcome

Expected outcome

I naturally expect the quiverkey to be as in the image below, with the default angle='uv' option:

Additional information

No response

Operating system

Arch Linux

Matplotlib Version

3.7.1

Matplotlib Backend

QtAgg

Python version

Python 3.11.3

Jupyter version

No response

Installation

Linux package manager