AutoCompleteBox Copy-Cut are always disabled
description
AutoCompleteBox moves cursor at the end of line by right mouse click.
Steps to reproduce:
1. Add to Window AutoCompleteBox (<Grid><cc:AutoCompleteBox /></Grid>)
2. Run application
3. Enter some text
4. Select all entered text
5. Right mouse click by selected text
6. You can use "Paste" menu only
Expected behavior:
User should be able to copy-cut text from AutocompleteBox via ContextMenu. Now it works throw keyboard only.