Multliline if condition can have incorrect indentation error

[nojaf]

Issue created from fantomas-online

Code

let code =
    if System.Text.RegularExpressions.Regex.IsMatch(
    d.Name,
    """^[a-zA-Z][a-zA-Z0-9']+$"""
    ) then
    d.Name
    elif d.NamespaceToOpen.IsSome then
    d.Name
    else
    PrettyNaming.QuoteIdentifierIfNeeded d.Name

Result

let code =
  if System.Text.RegularExpressions.Regex.IsMatch(
    d.Name,
    """^[a-zA-Z][a-zA-Z0-9']+$"""
  ) then
    d.Name
  elif d.NamespaceToOpen.IsSome then
    d.Name
  else
    PrettyNaming.QuoteIdentifierIfNeeded d.Name

Problem description

error FS0058: Possible incorrect indentation: this token is offside of context started at position (988:85). Try indenting this token further or using standard formatting conventions. 

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 11/21/2020 19:15:23 - f09f494

    { config with
                IndentSize = 2
                MaxLineLength = 60 }