$ git clone -n https://src.fedoraproject.org/rpms/rust-faster-hex.git /var/lib/mock/f40-build-2487464-61651/root/chroot_tmpdir/scmroot/rust-faster-hex
Cloning into '/var/lib/mock/f40-build-2487464-61651/root/chroot_tmpdir/scmroot/rust-faster-hex'...
$ git fetch origin de77ecd5441b0d10b3067e6f470947ccd86b55cb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-faster-hex
 * [new ref]         de77ecd5441b0d10b3067e6f470947ccd86b55cb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at de77ecd Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild