Problem rotating P images

[LIMr1209]

from PIL import Image
import random

img = Image.open('test.png')
rate = random.randint(30, 330)
img = img.rotate(rate)
img.show()
img.save('test_rotate.png')

[LIMr1209]

The image generated by rotating the picture is a binary image

[radarhere]

If you're looking for an immediate solution, you can convert it to RGB after opening.

from PIL import Image
import random

img = Image.open('test.png').convert('RGB')
rate = random.randint(30, 330)
img = img.rotate(rate)
img.show()
img.save('test_rotate.png')

[LIMr1209]

Thank you for your answer. It's useful

[radarhere]

This problem was introduced by #5552

[radarhere]

I've created PR #5647 to resolve this. If you want, you can test it to confirm that it fixes your problem.