When opening new files, the native file chooser according to the OS should be used. This is no longer the case and the stock file chooser is used instead (see screenshot attached).
Steps to Reproduce:
1. Open LibreOffice Startcenter
2. Open new file by choosing Open File menu item on Startcenter sidebar
Stock file chooser is displayed
macOS native file chooser is displayed
User Profile Reset: No
Issue exists on current revision of master.
Created attachment 166306 [details]
*** This bug has been marked as a duplicate of bug 137573 ***