Multiple sort in TreeTable is not working when passing multisortmeta props

[Sanbala]

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[x] bug report
[ ] feature request
[ ] support request => Please do not submit support request here, instead see https://forum.primefaces.org/viewforum.php?f=57

Codesandbox Case (Bug Reports)

Current behavior
If the column is in ascending order initially during render, clicking on the column is not sorting it in descending order. Specifically descending is not happening on clicking column.

Expected behavior
If the column is in already sorted order, clicking on that should change the order.

Minimal reproduction of the problem with instructions

Steps to reproduce:
Pass onsort function and multisortmeta with "name" filed and sort order as 1(ascending) to treetable
click on the name column to sort it in descending order.. it is not working.

Example: https://codesandbox.io/s/primereact-test-i5ko1

Please tell us about your environment:
Windows

• React version:
  latest version - 16+

• PrimeReact version:
  latest version

Browser: [all ]
all

• Language: [TypeScript X.X | ES6]