"filter_contains" argument causes get_refs to find no matches

Hi,

I have a piece of code that uses get_refs with a prefix filter argument. I observed the results and then I put in filter_contains a character that I can see exists in all the refs returned from the first call to get_refs. The call with the filter_contains returns 0 refs.

refs = self._connection.clients_v5_1.get_git_client().get_refs(repository_id = repo_id,
                                      project = project_id,
                                      filter = prefix_filter,
                                      peel_tags = True,
                                      include_statuses = True,
                                      latest_statuses_only = True,
                                      top = 100,
                                      continuation_token = continuation_token)

In this example, all relevant ref name field contain the character 'V'. The call:

refs = self._connection.clients_v5_1.get_git_client().get_refs(repository_id = repo_id,
                                      project = project_id,
                                      filter = prefix_filter,
                                      peel_tags = True,
                                      include_statuses = True,
                                      latest_statuses_only = True,
                                      top = 100,
                                      continuation_token = continuation_token,
                                      filter_contains = "V")

results in refs containing 0 results, and the call returns almost immediately, as opposed to taking several seconds in the first call.

Thanks.

Start at the Python client's get_refs entry point and inspect how the filter and filter_contains arguments are sent. Reproduce the reported case with refs containing 'V', then verify that filter_contains returns those matching refs instead of an empty result.