function discardVariantContent(sVReference) {
		return VariantManager.eraseDirtyChangesOnVariant(this.sVariantManagementReference, sVReference, this._getAppComponent())
		.then(function(aDirtyChanges) {
			this.setDiscardedChanges(aDirtyChanges);
		}.bind(this));
	}
Discarded changes when user switches from a dirty variant choosing "discard"