Thanks to Korl for pointing out, that the QuickEdit-Button in SMF won't work in locked topics, even if the user has rights to do so.
I took some minutes and found out what the reason was, the [em]$moderate_boards[/em] variable is not set properly and not even loaded.
Replace line 2050f (containing the following):
(!isset($_REQUEST['modify']) || (!empty($moderate_boards) && $moderate_boards == 0) ? '' : ' AND (t.locked = 0' . (empty($moderate_boards) ? '' : ' OR b.ID_BOARD IN (' . implode(', ', $moderate_boards)) . ')')
And replace it with:
Now put right after the
in line 2059 the following:
if (!empty($row['locked'])) isAllowedTo('moderate_board');
Thats it, have fun! Bugreport with Fix has been
posted at official SMF-Site.