Warning if Number stored in String variable

Classic Servoy
1

Should Servoy raise a warning if a Number variable is stored in a String variable?

I tried the following.:

/**
 * @type {Number}
 */
var documentClassSelection = 1;
/**
 * @type { { documentClassSelection:String } }
 */
var reportParams = {};
reportParams.documentClassSelection = documentClassSelection + 1;

I think this, because reportParams.documentClassSelection instanceof Number returns true is that case.