if last sender is none we can fallback to root

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "meshcore-cli"
-version = "0.7.333"
+version = "0.7.3"
 authors = [
   { name="Florent de Lamotte", email="florent@frizoncorrea.fr" },
 ]

src/meshcore_cli/meshcore_cli.py

@@ -471,7 +471,7 @@ Line starting with \"$\" or \".\" will issue a meshcli command.
                         contact = pc
                     elif dest == "~" or dest == "/" or dest == mc.self_info['name']:
                         contact = None
-                    elif dest == "!" and not process_event_message.last_node is None:
+                    elif dest == "!" :
                         contact = process_event_message.last_node
                     else :
                         print(f"Contact '{dest}' not found in contacts.")