with_suffix always reencode entire name

[NTFSvolume]

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Describe the bug

Calling with_suffix always re-encode the entire name. That's because with_suffix calls with_name under the hood, which always auto encodes

from the method's description:

suffix is encoded if needed

yarl/yarl/_url.py

Lines 1350 to 1354 in 07c1b4f

	"""Return a new URL with suffix (file extension of name) replaced.
	Query and fragment parts are cleaned up.
	suffix is encoded if needed.

To Reproduce

from yarl import URL
url = URL("https://domain.com/video file.mp4")
print (url) # https://domain.com/video%20file.mp4
print (url.with_suffix(".avi")) # https://domain.com/video%2520file.avi

Expected behavior

Only the suffix should be encoded (if needed) instead of the entire name.

Therefore, the expected result would be https://domain.com/video%20file.avi instead of https://domain.com/video%2520file.avi

Logs/tracebacks

NA

Python Version

$ python --version
Python 3.13.2

multidict Version

$ python -m pip show multidict
Version: 6.1.0

propcache Version

$ python -m pip show propcache
Version: 0.2.1

yarl Version

$ python -m pip show yarl
Version: 1.18.3

OS

Windows 10

Additional context

No response

[asvetlov]

Good catch! Would you propose a fix?