$ git clone -n https://src.fedoraproject.org/rpms/rust-zip2.git /var/lib/mock/f45-build-46347-833/root/chroot_tmpdir/scmroot/rust-zip2
Cloning into '/var/lib/mock/f45-build-46347-833/root/chroot_tmpdir/scmroot/rust-zip2'...
$ git fetch origin 233577d23ca1d2fa8c4cdd66d43c305c98c18e6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-zip2
 * [new ref]         233577d23ca1d2fa8c4cdd66d43c305c98c18e6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 233577d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild