cue def --inline-imports regression in v0.11

[gotwarlost]

What version of CUE are you using (cue version)?

$ cue version
cue version v0.11.1

go version go1.23.1
      -buildmode exe
       -compiler gc
  DefaultGODEBUG asynctimerchan=1,gotypesalias=0,httpservecontentkeepheaders=1,tls3des=1,tlskyber=0,x509keypairleaf=0,x509negativeserial=1
     CGO_ENABLED 1
          GOARCH arm64
            GOOS darwin
         GOARM64 v8.0
cue.lang.version v0.11.1

Does this issue reproduce with the latest stable release?

yes

What did you do?

Ran a testscript test with the following contents:

# tidy
go mod tidy

# test
exec go run cuelang.org/go/cmd/cue def --inline-imports ./p1
stdin stdout
exec go run cuelang.org/go/cmd/cue eval --out=json -
cmp stdout stdout.golden

-- go.mod --
module mod.example

require cuelang.org/go v0.11.1
-- deps.go --
package deps

import _ "cuelang.org/go/cmd/cue"
-- cue.mod/module.cue --
module: "example.com/def"
language: {
	version: "v0.9.2"
}
-- p1/caller.cue --
package p1

import (
	"example.com/def/p2"
)

r: "us-east-1"
shortRegionName: p2.regionMap[r]

-- p2/callee.cue --
package p2

#RegionMap: {
	"us-east-1": "ue1"
	"us-west_1": "uw1"
}

regionMap: #RegionMap
-- stdout.golden --
{
    "r": "us-east-1",
    "shortRegionName": "ue1"
}

What did you expect to see?

A passing test

What did you see instead?

$ testscript x.txt
> exec sh -c 'cue def --inline-imports ./p1 | cue eval --out=json -'
[stderr]
let[].#x: reference "#RegionMap" not found:
    -:8:6
[exit status 1]
FAIL: x.txt:1: unexpected command failure
failed run

Testing on other versions

$ go install cuelang.org/go/cmd/[email protected]
$ testscript x.txt
PASS

[gotwarlost]

git bisect says that the regression was introduced in this commit: a50fa63

[myitcv]

@gotwarlost thanks for another great repro. I've confirmed this does indeed bisect to a50fa63. I've tweaked your testscript slightly to make it easier to run in a git bisect run mode.

[myitcv]

FWIW this problem occurs for both evalv2 and evalv3.