More SC-related fixes

plugwise_usb/__init__.py

@@ -176,10 +176,8 @@ def port(self, port: str) -> None:
             raise StickError(
                 "Unable to change port while connected. Disconnect first"
             )
-        if self._port is None:
-            self._port = port
-        if port != self._port:
-            self._port = port
+
+        self._port = port
 
     @property
     def accept_join_request(self) -> bool | None:
@@ -201,7 +199,7 @@ async def set_accept_join_request(self, state: bool) -> bool:
         if self._network is None or not self._network.is_running:
             raise StickError(
                 "Cannot accept joining node"
-                + "without node discovery be activated. Call discover() first."
+                + " without node discovery be activated. Call discover() first."
             )
 
         # Observation: joining is only temporarily possible after a HA (re)start or
@@ -278,6 +276,7 @@ async def connect(self, port: str | None = None) -> None:
                 f"Already connected to {self._port}, " +
                 "Close existing connection before (re)connect."
             )
+
         if port is not None:
             self._port = port
 
@@ -286,6 +285,7 @@ async def connect(self, port: str | None = None) -> None:
                 "Unable to connect. " +
                 "Path to USB-Stick is not defined, set port property first"
             )
+
         await self._controller.connect_to_stick(
             self._port,
         )