reduce -n returns an IncompatiblePathAccess error

[rgwood]

Describe the bug

Simple uses of reduce --numbered (-n) return an "IncompatiblePathAccess" error.

How to reproduce

〉[1 2 3] | reduce -n {|it, acc| $acc.item + $it.item }
╭───────┬──────────────────────────────────────────────────────────────────╮
│ index │ 2                                                                │
│ item  │ IncompatiblePathAccess("error", Span { start: 5905, end: 5909 }) │
╰───────┴──────────────────────────────────────────────────────────────────╯

Or, using this example from the book (slightly simplified):

〉[3 8 4] | reduce -n {|it, acc| $acc.item + $it.index * $it.item }
╭───────┬──────────────────────────────────────────────────────────────────╮
│ index │ 2                                                                │
│ item  │ IncompatiblePathAccess("error", Span { start: 5958, end: 5962 }) │
╰───────┴──────────────────────────────────────────────────────────────────╯

Expected behavior

I expected nu to return an integer, not an error.

Screenshots

No response

Configuration

key	value
version	0.59.1
branch	main
short_commit	69fd777
commit_hash	69fd777
commit_date	2022-03-06 00:55:37 +00:00
build_os	windows-x86_64
rust_version	rustc 1.59.0 (9d1b2106e 2022-02-23)
rust_channel	stable-x86_64-pc-windows-msvc
cargo_version	cargo 1.59.0 (49d8809dc 2022-02-10)
pkg_version	0.59.1
build_time	2022-03-05 20:45:25 -08:00
build_rust_channel	debug
features	default, which
installed_plugins

Additional context

I noticed this when trying to upgrade this example in the book for engine-q block syntax. A comment in the example links to this issue which was closed; might be related?

[hustcer]

It’s a simple and fundamental usage and I think we should fix it in v0.60

[hustcer]

Seems still not work well? @jntrnr
$> [1 2 3] | reduce -n {|it, acc| $acc.item + $it.item }

Error: nu::shell::incompatible_path_access (link)

  × Data cannot be accessed with a cell path
   ╭─[entry #8:1:1]
 1 │ [1 2 3] | reduce -n {|it, acc| $acc.item + $it.item }
   ·                                     ──┬─
   ·                                       ╰── int doesn't support cell paths
   ╰────

[hustcer]

This works now:
[1 2 3] | reduce -n {|it, acc| $acc + $it.item }
[3 8 4] | reduce -n {|it, acc| $acc + $it.index * $it.item }