$ git clone -n https://src.fedoraproject.org/rpms/rust-ucd-trie.git /var/lib/mock/f45-build-45823-828/root/chroot_tmpdir/scmroot/rust-ucd-trie
Cloning into '/var/lib/mock/f45-build-45823-828/root/chroot_tmpdir/scmroot/rust-ucd-trie'...
$ git fetch origin 1d0d34bd587e8b4038d47ca22dc8f401a93c6544:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ucd-trie
 * [new ref]         1d0d34bd587e8b4038d47ca22dc8f401a93c6544 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d0d34b Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild