Crash with line-length 18 and backslash in docstring #3425
Description
Code:
def multiline_backslash_2():
"""
hey there \ """On Black 22.12.0:
% black --preview --diff tests/data/miscellaneous/docstring_no_string_normalization.py -l 18
error: cannot format tests/data/miscellaneous/docstring_no_string_normalization.py: INTERNAL ERROR: Black produced code that is not equivalent to the source. Please report a bug on https://github.com/psf/black/issues. This diff might be helpful: /var/folders/3b/k964cnv10097wzj3h7w07fww0000gp/T/blk_jh8pb654.log
Oh no! 💥 💔 💥
1 file would fail to reformat.
% cat /var/folders/3b/k964cnv10097wzj3h7w07fww0000gp/T/blk_jh8pb654.log
--- src
+++ dst
@@ -18,11 +18,11 @@
value=
Constant(
kind=
None, # NoneType
value=
- 'hey there \\', # str
+ 'hey there', # str
) # /Constant
) # /Expr
decorator_list=
name=
'multiline_backslash_2', # str