$ git clone -n https://src.fedoraproject.org/rpms/rust-markup5ever.git /var/lib/mock/f45-build-43120-800/root/chroot_tmpdir/scmroot/rust-markup5ever
Cloning into '/var/lib/mock/f45-build-43120-800/root/chroot_tmpdir/scmroot/rust-markup5ever'...
$ git fetch origin c1a0e7729ca8b990036ce9431111cbcae9a078bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-markup5ever
 * [new ref]         c1a0e7729ca8b990036ce9431111cbcae9a078bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c1a0e77 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild