Selection eligibility not working with header checkbox

[atorres16]

Describe the bug
Header checkbox ignoring selection eligibility condition

Tabulator Info

• 6.0.1

Working Example
https://jsfiddle.net/bugdqctv/1/

To Reproduce
Click the header checkbox, you'll see all rows being selected regardless of the elegibility condition:

selectableRowsCheck:function(row){
          return row.getData().age > 18; //allow selection of rows where the age is greater than 18
      }

Expected behavior
Some rows should not be selectable

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: Windows 10
• Browser Chrome, Edge