carton install --deployment doesn't update module

[NetPenguin]

A module is not updated even if the version of the installed module differs from description by cpanfile.snapshot.

reproduce

1. conditions

$ carton --version
carton v1.0.12
$ cpanm --version
cpanm (App::cpanminus) version 1.7001 (/home/xxxx/.perlbrew/libs/perl-5.16.3@carton-1.0/bin/cpanm)
perl version 5.016003 (/home/xxxx/perl5/perlbrew/perls/perl-5.16.3/bin/perl)
    :
(snip)
    :
$ ls -la
total 12
drwxrwxr-x  2 xxxx xxxx 4096 Oct 18 11:42 .
drwxrwxr-x 35 xxxx xxxx 4096 Oct 11 12:38 ..
-rw-rw-r--  1 xxxx xxxx   30 Oct 18 11:41 cpanfile
$ cat cpanfile
requires 'Data::Util', '== 0.61';
$

1. carton install

$ carton install
Installing modules using /home/xxxx/yyyy/cpanfile
Successfully installed Scope-Guard-0.20
Successfully installed Sub-Uplevel-0.24
Successfully installed Test-Exception-0.32
Successfully installed Test-use-ok-0.10
Successfully installed Hash-Util-FieldHash-Compat-0.03
Successfully installed Data-Util-0.61
6 distributions installed
Complete! Modules were installed into /home/xxxx/yyyy/local
$

1. keep local/

$ cp -a local local-0.61
$

1. modify cpanfile, and update cpanfile.snapshot

$ echo "requires 'Data::Util';" > cpanfile
$ carton update
Successfully installed Data-Util-0.62 (upgraded from 0.61)
1 distribution installed
$

1. restore local/ from local-0.61/

$ rm -rf local
$ mv local-0.61 local
$

1. check version

$ carton exec -- perl -E'use Data::Util; say $Data::Util::VERSION;'
0.61
$ cat cpanfile.snapshot
# carton snapshot format: version 1.0
DISTRIBUTIONS
  Data-Util-0.62
    pathname: G/GF/GFUJI/Data-Util-0.62.tar.gz
    provides:
      Data::Util 0.62
      Data::Util::Error undef
      Data::Util::PurePerl undef
    requirements:
      Devel::PPPort 3.19
      ExtUtils::MakeMaker 6.59
      ExtUtils::ParseXS 2.21
      Hash::Util::FieldHash::Compat 0
      Scope::Guard 0
      Test::Exception 0.27
      Test::More 0.62
      XSLoader 0.02
      perl 5.008001
  Hash-Util-FieldHash-Compat-0.03
    pathname: N/NU/NUFFIN/Hash-Util-FieldHash-Compat-0.03.tar.gz
    provides:
      Hash::Util::FieldHash::Compat 0.03
      Hash::Util::FieldHash::Compat::Destroyer undef
      Hash::Util::FieldHash::Compat::Tie::FieldHash undef
      Hash::Util::FieldHash::Compat::Tie::IdHash undef
    requirements:
      ExtUtils::MakeMaker 0
      Test::use::ok 0
  Scope-Guard-0.20
    pathname: C/CH/CHOCOLATE/Scope-Guard-0.20.tar.gz
    provides:
      Scope::Guard 0.20
    requirements:
      ExtUtils::MakeMaker 0
      Test::More 0
      perl 5.006001
  Sub-Uplevel-0.24
    pathname: D/DA/DAGOLDEN/Sub-Uplevel-0.24.tar.gz
    provides:
      Sub::Uplevel 0.24
    requirements:
      Carp 0
      Exporter 0
      ExtUtils::MakeMaker 6.30
      File::Find 0
      File::Temp 0
      Test::More 0
      constant 0
      strict 0
      warnings 0
  Test-Exception-0.32
    pathname: A/AD/ADIE/Test-Exception-0.32.tar.gz
    provides:
      Test::Exception 0.32
    requirements:
      Module::Build 0.38
      Sub::Uplevel 0.18
      Test::Builder 0.7
      Test::Builder::Tester 1.07
      Test::Harness 2.03
      Test::More 0.7
      Test::Simple 0.7
  Test-use-ok-0.11
    pathname: A/AU/AUDREYT/Test-use-ok-0.11.tar.gz
    provides:
      Test::use::ok 0.11
      ok 0.11
    requirements:
      ExtUtils::MakeMaker 6.36
      perl 5.005
$

1. carton install --deployment

$ carton install --deployment
Installing modules using /home/xxxx/yyyy/cpanfile (deployment mode)
Complete! Modules were installed into /home/xxxx/yyyy/local
$

1. check version

$ carton exec -- perl -E'use Data::Util; say $Data::Util::VERSION;'
0.61
$

[miyagawa]

Thanks for the report. Probably the same as #108.