$ cat /tmp/t.sh 
echo 100 > /tmp/testmodel1 
echo 300 > /tmp/testmodel2
podman artifact rm --ignore concurrent-artifact1:latest concurrent-artifact2:latest
podman artifact add --replace --type application/vnd.cnai.model.manifest.v1+json concurrent-artifact1:latest /tmp/testmodel1 &
podman artifact add --replace --type application/vnd.cnai.model.manifest.v1+json concurrent-artifact2:latest /tmp/testmodel2 &
# Wait for both to complete
wait $pid1
wait $pid2
podman artifact ls | grep concurrent

 $ sh /tmp/t.sh 
336345975eeea49ab41fdda5de584157770f8a8f1a8dcec4dd38eb4d2d89f3fd
6d4e0d585067c4e517c82c006efe644e869629942f61013a0d6de8fcdf1b1ded
71831c3c73e7aea2b153b982071b94a44eefecb78e9275f4c23b04e3a69f8037
concurrent-artifact1                latest      71831c3c73e7  Less than a second ago  4B
``


### Describe the results you received

One artifact

### Describe the results you expected

Two Artifacts

### podman info output

```yaml
host:
  arch: amd64
  buildahVersion: 1.42.0
  cgroupControllers:
  - cpu
  - io
  - memory
  - pids
  cgroupManager: systemd
  cgroupVersion: v2
  conmon:
    package: conmon-2.1.13-2.fc43.x86_64
    path: /usr/bin/conmon
    version: 'conmon version 2.1.13, commit: '
  cpuUtilization:
    idlePercent: 94.47
    systemPercent: 0.73
    userPercent: 4.8
  cpus: 24
  databaseBackend: sqlite
  distribution:
    distribution: fedora
    variant: workstation
    version: "43"
  emulatedArchitectures:
  - linux/arm
  - linux/arm64
  - linux/arm64be
  - linux/loong64
  - linux/mips
  - linux/mips64
  - linux/ppc
  - linux/ppc64
  - linux/ppc64le
  - linux/riscv32
  - linux/riscv64
  - linux/s390x
  eventLogger: journald
  freeLocks: 2045
  hostname: fedora
  idMappings:
    gidmap:
    - container_id: 0
      host_id: 3267
      size: 1
    - container_id: 1
      host_id: 524288
      size: 65536
    uidmap:
    - container_id: 0
      host_id: 3267
      size: 1
    - container_id: 1
      host_id: 524288
      size: 65536
  kernel: 6.17.7-300.fc43.x86_64
  linkmode: dynamic
  logDriver: journald
  memFree: 9487904768
  memTotal: 92396331008
  networkBackend: netavark
  networkBackendInfo:
    backend: netavark
    dns:
      package: aardvark-dns-1.16.0-1.fc43.x86_64
      path: /usr/libexec/podman/aardvark-dns
      version: aardvark-dns 1.16.0
    package: netavark-1.16.1-1.fc43.x86_64
    path: /usr/libexec/podman/netavark
    version: netavark 1.16.1
  ociRuntime:
    name: crun
    package: crun-1.25-1.fc43.x86_64
    path: /usr/bin/crun
    version: |-
      crun version 1.25
      commit: d9a0adce065c7747ab88ea6ccc42b15a626e08e1
      rundir: /run/user/3267/crun
      spec: 1.0.0
      +SYSTEMD +SELINUX +APPARMOR +CAP +SECCOMP +EBPF +CRIU +LIBKRUN +WASM:wasmedge +YAJL
  os: linux
  pasta:
    executable: /bin/pasta
    package: passt-0^20250919.g623dbf6-1.fc43.x86_64
    version: |
      pasta 0^20250919.g623dbf6-1.fc43.x86_64
      Copyright Red Hat
      GNU General Public License, version 2 or later
        <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
      This is free software: you are free to change and redistribute it.
      There is NO WARRANTY, to the extent permitted by law.
  remoteSocket:
    exists: true
    path: /run/user/3267/podman/podman.sock
  rootlessNetworkCmd: pasta
  security:
    apparmorEnabled: false
    capabilities: CAP_CHOWN,CAP_DAC_OVERRIDE,CAP_FOWNER,CAP_FSETID,CAP_KILL,CAP_NET_BIND_SERVICE,CAP_SETFCAP,CAP_SETGID,CAP_SETPCAP,CAP_SETUID,CAP_SYS_CHROOT
    rootless: true
    seccompEnabled: true
    seccompProfilePath: /usr/share/containers/seccomp.json
    selinuxEnabled: true
  serviceIsRemote: false
  slirp4netns:
    executable: /bin/slirp4netns
    package: slirp4netns-1.3.1-3.fc43.x86_64
    version: |-
      slirp4netns version 1.3.1
      commit: e5e368c4f5db6ae75c2fce786e31eef9da6bf236
      libslirp: 4.9.1
      SLIRP_CONFIG_VERSION_MAX: 6
      libseccomp: 2.6.0
  swapFree: 8589918208
  swapTotal: 8589930496
  uptime: 166h 34m 37.00s (Approximately 6.92 days)
  variant: ""
plugins:
  authorization: null
  log:
  - k8s-file
  - none
  - passthrough
  - journald
  network:
  - bridge
  - macvlan
  - ipvlan
  volume:
  - local
registries:
  search:
  - registry.fedoraproject.org
  - registry.access.redhat.com
  - docker.io
store:
  configFile: /home/dwalsh/.config/containers/storage.conf
  containerStore:
    number: 0
    paused: 0
    running: 0
    stopped: 0
  graphDriverName: overlay
  graphOptions: {}
  graphRoot: /home/dwalsh/.local/share/containers/storage
  graphRootAllocated: 2046687182848
  graphRootUsed: 174244646912
  graphStatus:
    Backing Filesystem: btrfs
    Native Overlay Diff: "true"
    Supports d_type: "true"
    Supports shifting: "false"
    Supports volatile: "true"
    Using metacopy: "false"
  imageCopyTmpDir: /var/tmp
  imageStore:
    number: 138
  runRoot: /run/user/3267/containers
  transientStore: false
  volumePath: /home/dwalsh/.local/share/containers/storage/volumes
version:
  APIVersion: 5.7.0
  BuildOrigin: Fedora Project
  Built: 1762819200
  BuiltTime: Mon Nov 10 19:00:00 2025
  GitCommit: 0370128fc8dcae93533334324ef838db8f8da8cb
  GoVersion: go1.25.4 X:nodwarf5
  Os: linux
  OsArch: linux/amd64
  Version: 5.7.0