fix!: Remove PartialEq from Command

This gives us more implementation flexibility

CHANGELOG.md

@@ -19,6 +19,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - `ErrorKind::UnrecognizedSubcommand` replaced with `ErrorKind::InvalidSubcommand` (#3676)
 - `arg!` now sets `ArgAction::SetTrue`, `ArgAction::Count`, `ArgAction::Set`, or `ArgAction::Append` as appropriate (#3795)
 - Default actions are now `Set` and `SetTrue`
+- Removed `PartialEq` and `Eq` from `Command`
 - *(help)* Make `DeriveDisplayOrder` the default and removed the setting.  To sort help, set `next_display_order(None)` (#2808)
 - *(help)* Subcommand display order respects `Command::next_display_order` instead of `DeriveDisplayOrder` and using its own initial display order value (#2808)
 - *(env)* Parse `--help` and `--version` like any `ArgAction::SetTrue` flag (#3776)

src/builder/command.rs

@@ -63,7 +63,7 @@ use crate::builder::debug_asserts::assert_app;
 /// // Your program logic starts here...
 /// ```
 /// [`Command::get_matches`]: Command::get_matches()
-#[derive(Debug, Clone, PartialEq, Eq)]
+#[derive(Debug, Clone)]
 pub struct Command<'help> {
     id: Id,
     name: String,