extensions/resource/src/main/java/uk/co/tfd/sm/util/http/ModificationRequest.java
public void resetProperties() {
		for ( Entry<ParameterType, Map<String, Object>> e : stores.entrySet()) {
			e.getValue().clear();
		}
	}
public void resetProperties() {
		for ( Entry<ParameterType, Map<String, Object>> e : stores.entrySet()) {
			e.getValue().clear();
		}
	}
Clear the current set of properties to add and remove.