resources/booking/add: fixed handling of overwrite_bookings parameter, fixes #5749

Closes #5749

Merge request studip/studip!4377

1 files changed, 1 insertions, 1 deletions

diff --git a/app/controllers/resources/booking.php b/app/controllers/resources/booking.php
index ca025ba..f5dec25 100644
--- a/app/controllers/resources/booking.php
+++ b/app/controllers/resources/booking.php
@@ -1088,7 +1088,7 @@ class Resources_BookingController extends AuthenticatedController
             //a lock booking.
             CSRFProtection::verifyUnsafeRequest();
 
-            $this->overwrite_bookings = Request::get('overwrite_bookings');
+            $this->overwrite_bookings = Request::bool('overwrite_bookings', false);
 
             $this->semester_id = Request::get('semester_id');
             $this->selected_end = Request::get('selected_end');