If the locale for sprintf() uses comma for the decimal separator then the following error occurs when Reset Dashboard for all users is clicked:

Exception - core\output\core_renderer::render_progress_bar_update(): Argument #2 ($percent) must be of type float, string given, called in [dirroot]/lib/classes/output/progress_bar.php on line 184

More information about this error
Debug info:
Error code: generalexceptionmessage
Stack trace:

    line 4766 of /lib/classes/output/core_renderer.php: TypeError thrown
    line 184 of /lib/classes/output/progress_bar.php: call to core\output\core_renderer->render_progress_bar_update()
    line 222 of /lib/classes/output/progress_bar.php: call to core\output\progress_bar->update_raw()
    line 234 of /lib/classes/output/progress_bar.php: call to core\output\progress_bar->update_full()
    line 313 of /my/lib.php: call to core\output\progress_bar->update()
    line 70 of /my/indexsys.php: call to my_reset_page_for_all_users()

Steps to reproduce issue

1. Set up a Moodle 4.5 site.

2. If your locale uses '.' as the decimal separator: edit lib/classes/output/progress_bar.php adding the setlocale() call below:

183         if ($this->autoupdate) {

184             setlocale(LC_ALL, 'pt_BR.UTF-8');

185             echo $OUTPUT->render_progress_bar_update($this->idnumber, sprint    f("%.1f", $this->percent), $msg, $estimatemsg);

3. Go to Site administration > Appearance > Default Dashboard page.

4. Click Reset Dashboard for all users.

Expected results

Message All Dashboard pages have been reset to default with progress bar at 100%.

Actual results

Error Exception - core\output\core_renderer::render_progress_bar_update(): Argument #2 ($percent) must be of type float, string given, called in [dirroot]/lib/classes/output/progress_bar.php on line 185.