$ git clone -n https://src.fedoraproject.org/rpms/rust-enum_dispatch.git /var/lib/mock/f38-build-side-43-rust-devel-1414415-31448/root/chroot_tmpdir/scmroot/rust-enum_dispatch
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1414415-31448/root/chroot_tmpdir/scmroot/rust-enum_dispatch'...
$ git fetch origin c18b1cf09fea9997f88d37f055e00665d10342ee:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-enum_dispatch
 * [new ref]         c18b1cf09fea9997f88d37f055e00665d10342ee -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c18b1cf Initial package. Closes rhbz#2238116.