When passing param via GET request like:
http://localhost:8080/jenkins/job/Local/buildWithParameters?NODENAME=node1
jenkins create default node parameter variable.

I think that the cause is in NodeParameterDefinition class line 77:

public ParameterValue createValue(String value)

{ return new NodeParameterValue(getName(), value, getDescription()); }

See

public NodeParameterValue(String name, String description, String label)

{ super(name, description, label); }

Value and description need to be switched.