GitHub AzureDevOps Pipeline Branch Filters no longer triggering CI builds

[jzabroski]

Describe the bug
New PRs from dependabot are not building. Example: #1766

This was last known to be working last Thursday:

To Reproduce
Submit any PR to this project, and it does not automatically trigger a build.

Expected behavior
Submit any PR to this project, and it automatically triggers a build.

Information (please complete the following information):
The error message on the Checks tab suggests reading the following page: https://learn.microsoft.com/en-us/azure/devops/pipelines/build/triggers?view=azure-devops

The "view more on Azure Pipelines" link does point to the correct pipeline: https://dev.azure.com/fluentmigrator/fluentmigrator/_build?definitionId=2 , so it's finding the right workflow, but not matching any branches apparently.

Additional context
I've submitted a GitHub Community post about this problem as well. https://github.com/orgs/community/discussions/114175