Azure Container Registry action in pwsh shell crashes in github actions

[masoudmodabber]

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I am trying to check if a repo exists in my acr. this is the step:

    name: check image exists
    shell: pwsh
    run: |
      az login --service-principal -u CLIENTID -p CLIENTSECRET  --tenant TENANTID 
      az acr login --name ACRNAME  --username ACRUSERNAME --password ACRPASSWORD           
      
      try {                                              
        az acr repository show --name ACRNAME --repository REPONAME
        $REPO_EXISTS = $true
      } catch {
        $REPO_EXISTS = $false
      }   
      Write-Output "Repository exists: $REPO_EXISTS"

It works and it even correctly prints that the repo exists: true
But then exists with this error Error: Process completed with exit code 1.
When I remove the acr show and try catch altogether, it logs in and then finishes gracefully.

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