fix: always show version

services/backend/src/api/views/utils.py

@@ -76,11 +76,11 @@ def generate(services, volumes, networks, version="3", return_format='yaml'):
     specified_version = get_version(version)
     base_version = int(specified_version)
 
-    if services:
     ret_yaml.dump({'version': DoubleQuotedScalarString(specified_version)}, s)
     ret_yaml.explicit_start = False
     s.write('\n')
 
+    if services:
         if base_version in {2, 3}:
             ret_yaml.dump({'services': services}, s, transform=sequence_indent_four)