SIM905 fix for rsplit is reversed #18042
Description
Summary
The list produced for rsplit by split-static-string (SIM905) is the reverse of what it should be.
$ cat >sim905.py <<'# EOF'
print("a,b".rsplit(","))
# EOF
$ python sim905.py
['a', 'b']
$ ruff --isolated check sim905.py --select SIM905 --fix
Found 1 error (1 fixed, 0 remaining).
$ cat sim905.py
print(["b", "a"])
$ python sim905.py
['b', 'a']This is because the fix is implemented with Rust’s str::rsplit and str::rsplitn, which return iterators over the string in reverse, unlike Python’s str.rsplit.
Version
ruff 0.11.9 (2370297 2025-05-09)