Retain Jellyfin config flow input on connection issue (#121618)

homeassistant/components/jellyfin/config_flow.py

@@ -97,7 +97,11 @@ class JellyfinConfigFlow(ConfigFlow, domain=DOMAIN):
                 )
 
         return self.async_show_form(
-            step_id="user", data_schema=STEP_USER_DATA_SCHEMA, errors=errors
+            step_id="user",
+            data_schema=self.add_suggested_values_to_schema(
+                STEP_USER_DATA_SCHEMA, user_input
+            ),
+            errors=errors,
         )
 
     async def async_step_reauth(