#### SUMMARY
<!--- Explain the problem briefly below -->
Installing `amazon.aws` collection fails on ansible/ansible@devel, supposedly because of the embedded symlinks:
```console
ERROR! Unexpected Exception, this is probably a bug: "filename 'tests/unit/mod
ules/placebo_recordings/aws_direct_connect_link_aggregation_group/nonexistent_
lag_status' not found"
```

##### 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 CLI

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
devel

##### CONFIGURATION
<!--- Paste verbatim output from "ansible-config dump --only-changed" between quotes -->
N/A

##### OS / ENVIRONMENT
<!--- Provide all relevant information below, e.g. target OS versions, network device firmware, etc. -->
N/A

##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->
Running the install should be enough:
<!--- Paste example playbooks or commands between quotes below -->
```console
$ ANSIBLE_DEBUG=1 ansible-galaxy -vvvv collection install amazon.aws
```

##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
The collection install should succeed.

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

<!--- Paste verbatim command output between quotes -->
```python-traceback
Exception, this is probably a bug: "filename 'tests/unit/modules/placebo_recordings/aws_direct_connect_link_aggregation_group/nonexistent_lag_status' not found"
the full traceback was:
Traceback (most recent call last):
  File "/home/bcoca/work/ansible/bin/ansible-galaxy", line 123, in <module>
    exit_code = cli.run()
  File "/home/bcoca/work/ansible/lib/ansible/cli/galaxy.py", line 490, in run
    context.CLIARGS['func']()
  File "/home/bcoca/work/ansible/lib/ansible/cli/galaxy.py", line 1057, in execute_install
    self._execute_install_collection(collection_requirements, collection_path)
  File "/home/bcoca/work/ansible/lib/ansible/cli/galaxy.py", line 1079, in _execute_install_collection
    no_deps, force, force_with_deps, allow_pre_release=allow_pre_release)
  File "/home/bcoca/work/ansible/lib/ansible/galaxy/collection.py", line 675, in install_collections
    collection.install(output_path, b_temp_path)
  File "/home/bcoca/work/ansible/lib/ansible/galaxy/collection.py", line 250, in install
    self.install_artifact(b_collection_path, b_temp_path)
  File "/home/bcoca/work/ansible/lib/ansible/galaxy/collection.py", line 275, in install_artifact
    _extract_tar_dir(collection_tar, file_name, b_collection_path)
  File "/home/bcoca/work/ansible/lib/ansible/galaxy/collection.py", line 1387, in _extract_tar_dir
    tar_member = tar.getmember(to_native(dirname, errors='surrogate_or_strict'))
  File "/usr/lib/python3.7/tarfile.py", line 1752, in getmember
    raise KeyError("filename %r not found" % name)
KeyError: "filename 'tests/unit/modules/placebo_recordings/aws_direct_connect_link_aggregation_group/nonexistent_lag_status' not found"
```

break
        
        
        deps_not_checked = set(dependency_map.keys()).difference(checked_parents)
        for collection in deps_not_checked:
            dependency_map[collection].set_latest_version()
            if no_deps or len(dependency_map[collection].dependencies) == 0:
                checked_parents.add(collection)
    return dependency_map
def _collections_from_scm(collection, requirement, b_temp_path, force, parent=None):
    """Returns a list of collections found in the repo. If there is a galaxy.yml in the collection then just return
    the specific collection. Otherwise, check each top-level directory for a galaxy.yml.
    :param collection: URI to a git repo
    :param requirement: The version of the artifact
    :param b_temp_path: The temporary path to the archive of a collection
    :param force: Whether to overwrite an existing collection or fail
    :param parent: The name of the parent collection
    :raises AnsibleError: if nothing found
    :return: List of CollectionRequirement objects
    :rtype: list
    """
    reqs = []
    name, version, path, fragment = parse_scm(collection, requirement)
    b_repo_root = to_bytes(name, errors='surrogate_or_strict')
    b_collection_path = os.path.join(b_temp_path, b_repo_root)
    if fragment:
        b_fragment = to_bytes(fragment, errors='surrogate_or_strict')
        b_collection_path = os.path.join(b_collection_path, b_fragment)
    b_galaxy_path = get_galaxy_metadata_path(b_collection_path)
    err = ("%s appears to be an SCM collection source, but the required galaxy.yml was not found. "