$ git clone -n https://src.fedoraproject.org/rpms/makebootfat.git /var/lib/mock/f40-build-799326-142260/root/chroot_tmpdir/scmroot/makebootfat
Cloning into '/var/lib/mock/f40-build-799326-142260/root/chroot_tmpdir/scmroot/makebootfat'...
$ git fetch origin a7b246df10823c32532e26f8fb6fdb269ba67776:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/makebootfat
 * [new ref]         a7b246df10823c32532e26f8fb6fdb269ba67776 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a7b246d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild