Unable to reliably unlink managed API

**Describe the bug**

While working with a static web application that has been successfully deployed with the standard managed API backend, I am unable to reliably unlink the managed API to link my own function backend. I have followed the instructions located at https://learn.microsoft.com/en-us/azure/static-web-apps/functions-bring-your-own and left the API location set to "" but it does not unlink. If I try many deployments in a row, sometimes it will unlink but it does not happen as it is mentioned in the article.

Config example:

```
- name: Deploy static web app
id: builddeploy
uses: Azure/static-web-apps-deploy@v1
with:
azure_static_web_apps_api_token: ${{ env.AZURE_STATIC_WEB_APPS_API_TOKEN }} # secret containing api token for app
repo_token: ${{ secrets.GITHUB_TOKEN }} # Used for Github integrations (i.e. PR comments)
action: "upload"
skip_app_build: true
skip_api_build: true
###### Repository/Build Configurations - These values can be configured to match you app requirements. ######
app_location: ${{ env.APP_LOCATION }}
api_location: ""
output_location: ${{ env.APP_ARTIFACT_LOCATION }}
production_branch: "dev"
###### End of Repository/Build Configurations ######
```