Refactor code: Rename, Extract method and remove unused imports are not working.

[linette-zyy]

Environment
Build of Visual Studio: 18.10.0 Canary [12024.283.main]
Build of Python Package: 18.0.26207.1
Version of Pylance: 2026.2.109
OS version: Windows 11 Enterprise, version 25H2

Steps to Reproduce

1. Create a new python application
2. Input some codes

from math import cos, radians
	
# Create a string with spaces proportional to a cosine of x in degrees
def make_dot_string(x):
	rad = radians(x)                             # cos works with radians
	numspaces = int(20 * cos(radians(x)) + 20)   # scale to 0-40 spaces
	st = ' ' * numspaces + 'o'                   # place 'o' after the spaces
	return st
	
def main():
	for i in range(0, 1800, 12):
		s = make_dot_string(i)
		print(s)
	
main()

3. Right click ‘make_dot_string’， choose rename.

Expected behavior
A dialog will pops up, enter the new name and then enter, the code will change to new name

Additional context and screenshots
No response when refactor code