The text of the opened file disappear visually when calling File -> Save as command

[CyrilleB79]

The text in the editable zone of 6pad++ disappears when calling File -> Save as command from the menu.

Steps to reproduce eye-free with Jaws:

1. Open a file containing text.
2. Using the keyboard call File -> Save as in the menu.
3. Save the file with another name.
   -> A sighted person would see the text disappear.
4. Activate Jaws cursor and try to read the text of the file with the Jaws cursor.
   -> No text can be read.
5. Turn back to PC cursor.
6. Modify a line (e.g. adding some text)
   -> A sighted person would see the text of this line appear.
7. Activate Jaws cursor and try to read the text of the file with the Jaws cursor.
   -> Only the line that was modified can be read.
8. Turn back to PC cursor.
9. Go to another line and select some text on this line.
   -> A sighted person would see the text of this line appear.
10. Activate Jaws cursor and try to read the text of the file with the Jaws cursor.
    -> Only the line that was modified and the line that contains selected can be read. The reste of the text is not detected with the Jaws cursor.

Notes:

1. the bug does not appear if the Cancel button is clicked in the Save as dialog box.
2. The bug does not appear if using the Ctrl+Shift+S shortcut instead of the menu command.
3. I did not try to call the Save as command in the menu with the mouse.
4. In addition to selection or modification of the file's text, some other actions may make reappear some or all the lines of the text:

• changing active file with Ctrl+Tab and then turning back to the initial file: all the lines of the file become visible again.
• clicking twice on the windows start menu button to make it appear and then disappear: only some lines become visible again. The lines that become visible again seem to be those that should have be hidden by the opened start menu; but a person with good eyes should validate this.