$ git clone -n https://src.fedoraproject.org/rpms/rust-float-cmp.git /var/lib/mock/f40-build-2324972-58796/root/chroot_tmpdir/scmroot/rust-float-cmp
Cloning into '/var/lib/mock/f40-build-2324972-58796/root/chroot_tmpdir/scmroot/rust-float-cmp'...
$ git fetch origin b4e2fccb988fbde27e82391edc8198f584ffd5f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-float-cmp
 * [new ref]         b4e2fccb988fbde27e82391edc8198f584ffd5f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b4e2fcc Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild