diff --git a/b2/_internal/b2v3/registry.py b/b2/_internal/b2v3/registry.py
index 3017f2370..c099bfba2 100644
--- a/b2/_internal/b2v3/registry.py
+++ b/b2/_internal/b2v3/registry.py
@@ -26,6 +26,24 @@ def _initialize_b2_api(cls, args: argparse.Namespace, kwargs: dict) -> B2Api:
         return _get_b2api_for_profile(profile=args.profile, **kwargs)
 
 
+def main() -> None:
+    # this is a copy of v4 `main()` but with custom console tool class
+
+    ct = ConsoleTool(stdout=sys.stdout, stderr=sys.stderr)
+    exit_status = ct.run_command(sys.argv)
+    logger.info('\\\\ %s %s %s //', SEPARATOR, ('exit=%s' % exit_status).center(8), SEPARATOR)
+
+    # I haven't tracked down the root cause yet, but in Python 2.7, the futures
+    # packages is hanging on exit sometimes, waiting for a thread to finish.
+    # This happens when using sync to upload files.
+    sys.stdout.flush()
+    sys.stderr.flush()
+
+    logging.shutdown()
+
+    os._exit(exit_status)
+
+
 class Ls(B2URIBucketNFolderNameArgMixin, BaseLs):
     """
     {BASELS}
diff --git a/b2/_internal/console_tool.py b/b2/_internal/console_tool.py
index f01145a8b..48b0edb12 100644
--- a/b2/_internal/console_tool.py
+++ b/b2/_internal/console_tool.py
@@ -4265,7 +4265,9 @@ def _initialize_b2_api(cls, args: argparse.Namespace, kwargs: dict) -> B2Api:
 
         # here we initialize regular b2 api on disk, and check whether it matches
         # the keys from env vars; if they indeed match then there's no need to
-        # initialize in-memory account info cause it's already stored on disk
+        # initialize in-memory account info cause it's already stored on disk;
+        # beware that this has side effect of creating an empty account info file
+        # if it didn't exist before
         b2_api = _get_b2api_for_profile(profile=args.profile, **kwargs)
 
         key_id, key = get_keyid_and_key_from_env_vars()
diff --git a/test/integration/conftest.py b/test/integration/conftest.py
index e4d070996..4ad692871 100755
--- a/test/integration/conftest.py
+++ b/test/integration/conftest.py
@@ -100,13 +100,18 @@ def get_raw_cli_int_version(config) -> int | None:
     return None
 
 
+def get_cli_int_version(config) -> int:
+    return get_raw_cli_int_version(config) or get_int_version(LATEST_STABLE_VERSION)
+
+
 @pytest.fixture(scope='session')
-def apiver(request):
-    return f"v{get_cli_int_version(request.config)}"
+def apiver_int(request):
+    return get_cli_int_version(request.config)
 
 
-def get_cli_int_version(config) -> int:
-    return get_raw_cli_int_version(config) or get_int_version(LATEST_STABLE_VERSION)
+@pytest.fixture(scope='session')
+def apiver(apiver_int):
+    return f"v{apiver_int}"
 
 
 @pytest.hookimpl
diff --git a/test/integration/test_b2_command_line.py b/test/integration/test_b2_command_line.py
index 2a7b72dc5..0872c15f2 100755
--- a/test/integration/test_b2_command_line.py
+++ b/test/integration/test_b2_command_line.py
@@ -595,7 +595,7 @@ def test_rapid_bucket_operations(b2_tool):
     b2_tool.should_succeed(['delete-bucket', new_bucket_name])
 
 
-def test_account(b2_tool, cli_version):
+def test_account(b2_tool, cli_version, apiver_int):
     with b2_tool.env_var_test_context:
         b2_tool.should_succeed(['clear-account'])
         bad_application_key = random_hex(len(b2_tool.application_key))
@@ -637,7 +637,17 @@ def test_account(b2_tool, cli_version):
             ['create-bucket', bucket_name, 'allPrivate', *b2_tool.get_bucket_info_args()]
         )
         b2_tool.should_succeed(['delete-bucket', bucket_name])
-        assert not os.path.exists(new_creds), 'sqlite file was created'
+
+        assert os.path.exists(new_creds), 'sqlite file was not created'
+        account_info = SqliteAccountInfo(new_creds)
+        if apiver_int >= 4:
+            with pytest.raises(MissingAccountData):
+                account_info.get_application_key_id()
+            with pytest.raises(MissingAccountData):
+                account_info.get_application_key()
+        else:
+            assert account_info.get_application_key_id() == os.environ['B2_TEST_APPLICATION_KEY_ID']
+            assert account_info.get_application_key() == os.environ['B2_TEST_APPLICATION_KEY']
 
         os.environ.pop('B2_APPLICATION_KEY')
         os.environ.pop('B2_APPLICATION_KEY_ID')