$ git clone -n https://src.fedoraproject.org/rpms/vboot-utils.git /var/lib/mock/f42-build-side-1-3517639-46098/root/chroot_tmpdir/scmroot/vboot-utils
Cloning into '/var/lib/mock/f42-build-side-1-3517639-46098/root/chroot_tmpdir/scmroot/vboot-utils'...
$ git fetch origin f5f7e6f64c291caaacf5b5185357d1bba14bfba8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/vboot-utils
 * [new ref]         f5f7e6f64c291caaacf5b5185357d1bba14bfba8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f5f7e6f Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild