And another setting

.editorconfig

@@ -26,5 +26,6 @@ fsharp_multi_line_lambda_closing_newline=true
 fsharp_experimental_keep_indent_in_branch=true
 fsharp_max_value_binding_width=80
 fsharp_max_record_width=0
+fsharp_bar_before_discriminated_union_declaration=true
 max_line_length=120
 end_of_line=lf

Raft.Test/ValidHistory.fs

@@ -3,7 +3,7 @@ namespace Raft.Test
 open Raft
 open FsCheck
 
-type ValidHistory<'a> = ValidHistory of NetworkAction<'a> list
+type ValidHistory<'a> = | ValidHistory of NetworkAction<'a> list
 
 [<RequireQualifiedAccess>]
 module ValidHistory =