$ git clone -n https://src.fedoraproject.org/rpms/mkbootdisk.git /var/lib/mock/f40-build-802696-144065/root/chroot_tmpdir/scmroot/mkbootdisk
Cloning into '/var/lib/mock/f40-build-802696-144065/root/chroot_tmpdir/scmroot/mkbootdisk'...
$ git fetch origin f86245a88498a2c59e2c97dcf9022d251478aa99:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mkbootdisk
 * [new ref]         f86245a88498a2c59e2c97dcf9022d251478aa99 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f86245a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild