this.indexes)o=this.indexes[u],o<=s&&(this.indexes[u]=o+1);return this},t._findChildAtPosition=function(n,a){var s=void 0;return this.each(function(o){if(o.atPosition){var u=o.atPosition(n,a);if(u)return s=u,!1}else if(o.isAtPosition(n,a))return s=o,!1}),s},t.atPosition=function(n,a){if(this.isAtPosition(n,a))return this._findChildAtPosition(n,a)||this},t._inferEndPosition=function(){this.last&&this.last.source&&this.last.source.end&&(this.source=this.source||{},this.source.end=this.source.end||{},Object.ass...