Reset subcommand parse state when dispatching

Author: aweebit

lib/command.js

@@ -1128,6 +1128,7 @@ Expecting one of '${allowedValues.join("', '")}'`);
   _dispatchSubcommand(commandName, operands, unknown) {
     const subCommand = this._findCommand(commandName);
     if (!subCommand) this.help({ error: true });
+    subCommand.resetParseState();
 
     let hookResult;
     hookResult = this._chainOrCallSubCommandHook(hookResult, subCommand, 'preSubcommand');