Resolve race condition in powerview when discovered by zeroconf and dhcp (#50908)

Set the host in the context before checking to ensure
that the second discovery aborts. Seen when testing
on a very fast system only

homeassistant/components/hunterdouglas_powerview/config_flow.py

@@ -113,6 +113,7 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
         """Confirm dhcp or homekit discovery."""
         # If we already have the host configured do
         # not open connections to it if we can avoid it.
+        self.context[CONF_HOST] = self.discovered_ip
         for progress in self._async_in_progress():
             if progress.get("context", {}).get(CONF_HOST) == self.discovered_ip:
                 return self.async_abort(reason="already_in_progress")
@@ -140,8 +141,8 @@ class ConfigFlow(config_entries.ConfigFlow, domain=DOMAIN):
                 data={CONF_HOST: self.powerview_config[CONF_HOST]},
             )
 
-        self.context[CONF_HOST] = self.discovered_ip
         self._set_confirm_only()
+        self.context["title_placeholders"] = self.powerview_config
         return self.async_show_form(
             step_id="link", description_placeholders=self.powerview_config
         )

homeassistant/components/hunterdouglas_powerview/strings.json

@@ -12,6 +12,7 @@
         "description": "Do you want to setup {name} ({host})?"
       }
     },
+    "flow_title": "{name} ({host})",
     "error": {
       "cannot_connect": "[%key:common::config_flow::error::cannot_connect%]",
       "unknown": "[%key:common::config_flow::error::unknown%]"

homeassistant/components/hunterdouglas_powerview/translations/en.json

@@ -7,6 +7,7 @@
             "cannot_connect": "Failed to connect",
             "unknown": "Unexpected error"
         },
+        "flow_title": "{name} ({host})",
         "step": {
             "link": {
                 "description": "Do you want to setup {name} ({host})?",