fix(python/transport): fix UDP prefix search if correct full path is given

python/.changelog.d/2786.fixed

@@ -0,0 +1 @@
+Fixed behavior of UDP transport search by path when full path is provided and prefix_search is True

python/src/trezorlib/transport/udp.py

@@ -84,11 +84,17 @@ class UdpTransport(ProtocolBasedTransport):
 
     @classmethod
     def find_by_path(cls, path: str, prefix_search: bool = False) -> "UdpTransport":
+        try:
+            path = path.replace(f"{cls.PATH_PREFIX}:", "")
+            return cls._try_path(path)
+        except TransportException:
+            if not prefix_search:
+                raise
+
         if prefix_search:
             return super().find_by_path(path, prefix_search)
         else:
-            path = path.replace(f"{cls.PATH_PREFIX}:", "")
-            return cls._try_path(path)
+            raise TransportException(f"No UDP device at {path}")
 
     def wait_until_ready(self, timeout: float = 10) -> None:
         try: