Idempotency problem with lazy

[Smaug123]

Issue created from fantomas-online

Formatted code

module Foo =
    let bar () =

        if not
           <| RuntimeInformation.IsOSPlatform OSPlatform.Windows then
            raise
            <| PlatformNotSupportedException (
                "Blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah"
            )
        lazy
            (let foo = bar
             if ret then "" else "" |> log.LogInformation
             ret)

Reformatted code

module Foo =
    let bar () =

        if not
           <| RuntimeInformation.IsOSPlatform OSPlatform.Windows then
            raise
            <| PlatformNotSupportedException (
                "Blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah"
            )

        lazy
            (let foo = bar

             if ret then
                 ""
             else
                 "" |> log.LogInformation

             ret)

Problem description

Fantomas was not able to produce the same code after reformatting the result.

It tries to add and remove newlines just before the lazy.

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 at 04/05/2021 16:09:34 - 31922c0

    { config with
                MaxLineLength = 100
                SpaceBeforeUppercaseInvocation = true
                SpaceBeforeClassConstructor = true
                SpaceBeforeMember = true
                SpaceBeforeColon = true
                SpaceBeforeSemicolon = true
                MultilineBlockBracketsOnSameColumn = true
                NewlineBetweenTypeDefinitionAndMembers = true
                KeepIfThenInSameLine = true
                AlignFunctionSignatureToIndentation = true
                AlternativeLongMemberDefinitions = true
                MultiLineLambdaClosingNewline = true
                KeepIndentInBranch = true }

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