Issue 85604

Exporting to PDF via "Export Directly to PDF" button on the toolbar does not
always supply a default filename in the Export dialog.


Steps to reproduce behavior:

1.  Create new folder in Windows Explorer and switch to it.
2.  Create a new OpenDocument Text file and open it.  (in Explorer, right click
empty space, New...)
3.  Click "Export Directly to PDF" button on the main toolbar.  Observe "File
name" field is blank, therefore cannot save until a filename is typed in.
4.  Close Export dialog.
5.  Create a new file in current directory with a .pdf extension.
6.  Switch back to Writer, click "Export Directly to PDF".  Observe "File name"
field contains a default value of your document's name.
7.  Close Export dialog.
8.  Delete dummy PDF file from step 5.
9.  Repeat step 6, notice result is the same as step 3.


I use Foxit Reader 2.1 build 2023 for PDF viewing.
Adobe Acrobat Reader is not installed.