$ git clone -n https://src.fedoraproject.org/rpms/tboot.git /var/lib/mock/f39-build-1655601-40540/root/chroot_tmpdir/scmroot/tboot
Cloning into '/var/lib/mock/f39-build-1655601-40540/root/chroot_tmpdir/scmroot/tboot'...
$ git fetch origin a537d6f752b23a92dcfc3b42f026bad6b2c7ffc5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tboot
 * [new ref]         a537d6f752b23a92dcfc3b42f026bad6b2c7ffc5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a537d6f Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild