Support supplemental parameters when used with .bicepparam parameter file not working

[tnsholding]

Describe the bug

Trying to use the new possibility for using supplemental parameters when used with .bicepparam files according to #27527.

This change is supposed to be part of az cli version 2.54.0.

But running this command in an Azure DevOps pipeline does not seem to work when passing in multiple inline parameters.
Trying to run the following code in an AzureCLI@2 task:

 az deployment group create 
  --name api-deleteme-api 
  --subscription '62394fa1-c454-4478-944e-3bcadc25b8d1' 
  --resource-group 'integrationServices-dev' 
  --template-file 'D:\a\1/drop/api.bicep' 
  --parameters 'D:\a\1/drop/deleteme-api/azuredeploy.parameters.bicepparam' 
  --parameters version='v0.45' apiRevision='13' apiManagementServiceName='hofor-api-management-dev' 

Having a bicepparam file with the following content

...other parameters
param apiManagementServiceName = '#apiManagementServiceName - override from devops pipeline#' 

When running the deployment I get the error:
The Resource 'Microsoft.ApiManagement/service/#apiManagementServiceName - override from devops pipeline#' under resource group 'integrationServices-dev' was not found

Clearly indicating that the parameter value is still the value from the bicepparam file and NOT being overridden by the inline parameter passed to az deployment command.

Is this not how it was supposed to work? - the above code is running in the AzureCLI@2 task with the correct version (2.54.0):

Related command

az deployment group create
--name api-deleteme-api
--subscription '62394fa1-c454-4478-944e-3bcadc25b8d1'
--resource-group 'integrationServices-dev'
--template-file 'D:\a\1/drop/api.bicep'
--parameters 'D:\a\1/drop/deleteme-api/azuredeploy.parameters.bicepparam'
--parameters version='v0.45' apiRevision='13' apiManagementServiceName='hofor-api-management-dev'

Errors

The Resource 'Microsoft.ApiManagement/service/#apiManagementServiceName - override from devops pipeline#' under resource group 'integrationServices-dev' was not found

Issue script & Debug output

The Resource 'Microsoft.ApiManagement/service/#apiManagementServiceName - override from devops pipeline#' under resource group 'integrationServices-dev' was not found

Expected behavior

Expected the inline paramater to override the parameter in the bicepparam file.

Environment Summary

"azure-cli": "2.54.0",
"azure-cli-core": "2.54.0",

Additional context

No response

[yonzhan]

Thank you for opening this issue, we will look into it.

[microsoft-github-policy-service]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @josephkwchan, @jennyhunter-msft.

[anthony-c-martin]

@tnsholding - could you run the following command before starting the deployment and share the output, just to confirm the version of Bicep that has been installed:

az bicep version

I've tried to repro this locally with a minimal repro, and have not been able to:
Command:

az deployment group create -g ant-test --parameters main.bicepparam --query "properties.outputs" --parameters foo='override foo' bar='override bar'

Output:

{
  "bar": {
    "type": "String",
    "value": "override bar"
  },
  "baz": {
    "type": "String",
    "value": "base baz"
  },
  "foo": {
    "type": "String",
    "value": "override foo"
  }
}

main.bicepparam:

using 'main.bicep'

param foo = 'base foo'
param bar = 'base bar'
param baz = 'base baz'

main.bicep:

param foo string
param bar string
param baz string

output foo string = foo
output bar string = bar
output baz string = baz