Fantomas v4.6.4 and onwards removes backticks

[jamil7]

Issue created from fantomas-online

Code

let foo = {| ``type`` = "hi" |}

Result

let foo = {| type = "hi" |}

Problem description

Please describe here the Fantomas problem you encountered.
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Extra information

• The formatted result breaks by code.
• The formatted result gives compiler warnings.
• I or my company would be willing to help fix this.

Options

Fantomas master branch at 2022-03-15T07:45:16Z - f10e239

Default Fantomas configuration

_{Did you know that you can ignore files when formatting from fantomas-tool or the FAKE targets by using a .fantomasignore file?}

[jamil7]

Looks similar to #2116

[jamil7]

This works fine up until fantomas v4.6.3. All the versions after that one have this behavior.

[nojaf]

Hello, thank you for raising this issue.
Please consider fixing this upstream at dotnet/fsharp#12303.