$ git clone -n https://src.fedoraproject.org/rpms/rust-pyproject-toml.git /var/lib/mock/f45-build-44171-811/root/chroot_tmpdir/scmroot/rust-pyproject-toml
Cloning into '/var/lib/mock/f45-build-44171-811/root/chroot_tmpdir/scmroot/rust-pyproject-toml'...
$ git fetch origin 1622a88ccd62771457e6339d0ad0292341140e62:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pyproject-toml
 * [new ref]         1622a88ccd62771457e6339d0ad0292341140e62 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1622a88 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild