KeepIndentInBranch causing offside error in if condition

[Smaug123]

Issue created from fantomas-online

Code

module Foo =
    let bar =

        if output.Exists && not (output.EnumerateFiles() |> Seq.isEmpty && onlyContainsFoobar output) then
            Error (FooBarBazError.ErrorCase output)
        else
        
        let blah =
            let x = y
            None
        
        {
            Hi = blah
        }
        |> Ok

Result

module Foo =
    let bar =

        if
            output.Exists
            && not (
                output.EnumerateFiles () |> Seq.isEmpty
                && onlyContainsFoobar output
            )
        then
            Error (FooBarBazError.ErrorCase output)
        else

        let blah =
            let x = y
            None

        { Hi = blah } |> Ok

Problem description

The indentation of the branch looks good to me here, but enabling KeepIndentInBranch has caused the if condition's indentation to change in an offside-error-causing way.

Without KeepIndentInBranch, the body formats validly, as follows:

        if
            output.Exists
            && not
                (
                    output.EnumerateFiles () |> Seq.isEmpty
                    && onlyContainsFoobar output
                )
        then

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 07/05/2021 06:55:07 - f4e8286

    { config with
                MaxLineLength = 100
                SpaceBeforeUppercaseInvocation = true
                SpaceBeforeClassConstructor = true
                SpaceBeforeMember = true
                SpaceBeforeColon = true
                SpaceBeforeSemicolon = true
                IndentOnTryWith = true
                MultilineBlockBracketsOnSameColumn = true
                NewlineBetweenTypeDefinitionAndMembers = true
                AlignFunctionSignatureToIndentation = true
                AlternativeLongMemberDefinitions = true
                MultiLineLambdaClosingNewline = true
                DisableElmishSyntax = 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?}