$ git clone -n https://src.fedoraproject.org/rpms/rust-ucd-trie.git /var/lib/mock/f40-build-2658379-66917/root/chroot_tmpdir/scmroot/rust-ucd-trie
Cloning into '/var/lib/mock/f40-build-2658379-66917/root/chroot_tmpdir/scmroot/rust-ucd-trie'...
$ git fetch origin 8f7aa0fb73b342602b2ef29c7994122ec212c982:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ucd-trie
 * [new ref]         8f7aa0fb73b342602b2ef29c7994122ec212c982 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8f7aa0f Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild