Fix delete ignores selection in register cells.

Don't clear the selection before passing the event to the entry's
keypress handler. Instead set the sheet selection from the entry
when the handler returns.

gnucash/register/register-gnome/gnucash-sheet.c

@@ -1748,8 +1748,8 @@ pass_to_entry_handler (GnucashSheet *sheet, GdkEventKey *event)
     // If sheet is readonly, entry is not realized
     if (gtk_widget_get_realized (GTK_WIDGET(editable)))
     {
-        gnucash_sheet_clear_selection (sheet);
         result = gtk_widget_event (GTK_WIDGET(editable), (GdkEvent*)event);
+        gnucash_sheet_set_selection_from_entry (sheet);
     }
     return result;
 }