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<!--- Also test if the latest release and devel branch are affected too -->
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##### SUMMARY
<!--- Explain the problem briefly below -->
We publish semver collection (vyos.vyos:0.0.1-dev58) to ansible galaxy, however by default it seems ansible-galaxy client will not be able to find it. You must specific the version number directly to fetch it.

https://galaxy.ansible.com/vyos/vyos


EDIT:

This is working as expect, but it would be nice to Include:

   --pre                       Include pre-release and development versions. By default, ansible-galaxy only finds stable versions.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
ansible-galaxy

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
ansible 2.9.1
```

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
```paste below

```


##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->

<!--- Paste example playbooks or commands between quotes below -->
```yaml
$ ansible-galaxy collection install vyos.vyos -p /tmp/11123
[WARNING]: The specified collections path '/tmp/11123' is not part of the configured Ansible collections paths '/home/pabelanger/.ansible/collections:/usr/share/ansible/collections'. The
installed collection won't be picked up in an Ansible run.

Process install dependency map
ERROR! Cannot meet requirement * for dependency vyos.vyos from source 'https://galaxy.ansible.com/api/'. Available versions before last requirement added: 
Requirements from:
	base - 'vyos.vyos:*'
(venv) [pabelanger@localhost openstack]$ ansible-galaxy collection install vyos.vyos:0.0.1-dev57 -p /tmp/11123
[WARNING]: The specified collections path '/tmp/11123' is not part of the configured Ansible collections paths '/home/pabelanger/.ansible/collections:/usr/share/ansible/collections'. The
installed collection won't be picked up in an Ansible run.

Process install dependency map
Starting collection install process
Installing 'vyos.vyos:0.0.1-dev57' to '/tmp/11123/ansible_collections/vyos/vyos'
```

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##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
vyos.vyos collection to be found and installed

##### ACTUAL RESULTS
<!--- Describe what actually happened. If possible run with extra verbosity (-vvvv) -->

<!--- Paste verbatim command output between quotes -->
```paste below

```

req = collection.CollectionRequirement('namespace', 'name', None, 'https://galaxy.com', versions, requirement,
                                           False)
    assert req.versions == set(expected_filter)
    assert req.latest_version == expected_latest
def test_add_collection_requirement_to_unknown_installed_version(monkeypatch):
    mock_display = MagicMock()
    monkeypatch.setattr(Display, 'display', mock_display)
    req = collection.CollectionRequirement('namespace', 'name', None, 'https://galaxy.com', ['*'], '*', False,
                                           skip=True)
    req.add_requirement('parent.collection', '1.0.0')
    assert req.latest_version == '*'
    assert mock_display.call_count == 1
    actual_warn = ' '.join(mock_display.mock_calls[0][1][0].split('\n'))
    assert "Failed to validate the collection requirement 'namespace.name:1.0.0' for parent.collection" in actual_warn
def test_add_collection_wildcard_requirement_to_unknown_installed_version():
    req = collection.CollectionRequirement('namespace', 'name', None, 'https://galaxy.com', ['*'], '*', False,
                                           skip=True)
    req.add_requirement(str(req), '*')
    assert req.versions == set('*')
    assert req.latest_version == '*'
def test_add_collection_requirement_with_conflict(galaxy_server):
    expected = "Cannot meet requirement ==1.0.2 for dependency namespace.name from source '%s'. Available versions " \
               "before last requirement added: 1.0.0, 1.0.1\n" \
               "Requirements from:\n" \
               "\tbase - 'namespace.name:==1.0.2'" % galaxy_server.api_server
    with pytest.raises(AnsibleError, match=expected):
        collection.CollectionRequirement('namespace', 'name', None, galaxy_server, ['1.0.0', '1.0.1'], '==1.0.2',
                                         False)
def test_add_requirement_to_existing_collection_with_conflict(galaxy_server):