Bad interaction between KeepIndentInBranch and MultiLambdaClosingNewLine

[Smaug123]

Issue created from fantomas-online

Code

module Foo =
    let bar () =
        let baz =
            []
            |> List.filter (fun ref ->
                if ref.Type <> "h" then false
                else
                let m = regex.Match ref.To
                m.Success && things |> Set.contains (m.Groups.[1].ToString ())
            )
        0

Result

module Foo =
    let bar () =
        let baz =
            []
            |> List.filter (fun ref ->
                if ref.Type <> "h" then
                    false
                else
                    let m = regex.Match ref.To

                    m.Success
                    && things |> Set.contains (m.Groups.[1].ToString ())
            )

        0

Problem description

The body of the else in the lambda has been indented, which I didn't expect given KeepIndentInBranch. Note that if I turn off MultiLambdaClosingNewLine, the correct thing happens and the else block is unindented, so it's probably specifically an interaction between those two settings.

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 05/09/2021 13:45:10 - f10b822

    { config with
                SpaceBeforeUppercaseInvocation = true
                SpaceBeforeClassConstructor = true
                SpaceBeforeMember = true
                SpaceBeforeColon = true
                SpaceBeforeSemicolon = 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?}