Template string with special character are getting inappropriately autofix to quoted string

[riwu]

<input placeholder={`line1\nline2`} ></input> gets autofix into
<input placeholder="line1\nline2" /> which treats the \n literally.

Versions:
"eslint-config-airbnb": "^16.0.0",
"eslint-plugin-import": "^2.7.0",
"eslint-plugin-jsx-a11y": "^6.0.2",
"eslint-plugin-react": "^7.4.0"

[ljharb]

cc @jackyho112

[jackyho112]

@ljharb Thanks for tagging me! I think this bug will be fixed in this PR because, with this update, the rule will identify the backslash and bail out instead of incorrectly fixing the code.