$ git clone -n https://src.fedoraproject.org/rpms/castget.git /var/lib/mock/f40-build-801522-143809/root/chroot_tmpdir/scmroot/castget
Cloning into '/var/lib/mock/f40-build-801522-143809/root/chroot_tmpdir/scmroot/castget'...
$ git fetch origin 90bef8df66f03a01fcc57e6839ce3251a61272a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/castget
 * [new ref]         90bef8df66f03a01fcc57e6839ce3251a61272a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 90bef8d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild