conan: [bug] ERROR: Build-require 'xxx' cannot be found in lockfile (but it's there)

Environment Details (include every applicable attribute)

• Operating System+version: Linux, docker image conanio/gcc11
• Compiler+version: gcc (Ubuntu 11.1.0-1ubuntu1~20.04) 11.1.0
• Conan version: Conan version 1.44.0
• Python version: Python 3.7.5

Steps to reproduce (Include if Applicable)

run conanio/gcc11 image. execute the following command to create a lockfile:

$ conan lock create --reference gst-plugins-good/1.19.1@ --build -pr:b default -pr:h default

(two profiles are optional, it reproduces in single profile mode as well)

run the command to install:

$ conan install gst-plugins-good/1.19.1@ --lockfile=conan.lock --build missing

it will say:

ERROR: Build-require 'automake' cannot be found in lockfile

but it’s clearly there:

$ cat conan.lock  | grep automake
    "ref": "automake/1.16.4",
    "ref": "automake/1.16.4",

(also the full lockfile is attached below)

Logs (Executed commands with output) (Include/Attach if Applicable)

conan install gst-plugins-good/1.19.1@ --lockfile=conan.lock --build missing
Using lockfile: '/home/conan/conan.lock'
Configuration (profile_host):
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=gcc
compiler.libcxx=libstdc++
compiler.version=11
os=Linux
os_build=Linux
[options]
[build_requires]
[env]

Configuration (profile_build):
[settings]
arch=x86_64
arch_build=x86_64
build_type=Release
compiler=gcc
compiler.libcxx=libstdc++
compiler.version=11
os=Linux
os_build=Linux
[options]
[build_requires]
[env]

ERROR: Build-require 'automake' cannot be found in lockfile

conan.lock.txt