Line break and tab indentation makes wrong fix

[PicoSushi]

isort causes odd fixing with import line which contains line berak and tab indentation.

before isort (Notice that this code uses Tab indentation, not spaces.)

from sys \
	import version
print(version)

after isort

from sys import importversion

print(version)

expected

from sys import version

print(version)

Versions

• macOS Big Sur 11.2.3
• Python 3.9.4
• isort 5.7.0

[anirudnits]

This problem persists with the current 5.8.0 version as well.