better hide_secret support

bootstrap.py

@@ -84,6 +84,9 @@ async def main():
             # if rougail.general.hide_secret not exists
             pass
         await config.property.read_only()
+    for server_name in SERVERS:
+        config = CONFIGS[server_name]['config']
+        await config.value.dict()
     for server_name in SERVERS:
         module_name = CONFIGS[server_name]['module_name']
         destinations_dir = join(INSTALL_DIR, module_name, CONFIG_DIFF_DIR, server_name)

src/risotto/machine.py

@@ -44,6 +44,9 @@ async def set_linked_multi_variables(value: str,
             raise Exception(f'unknown variable {key}')
         if kvalue is None and not kwargs.get(f'allow_none_{index}', False):
             return
+        if f'linked_value_{index}' not in kwargs:
+            # value is disabled
+            continue
         if key.startswith('linked_provider_'):
             path = await config.information.get('provider:' + kvalue, None)
             if not path: