$ git clone -n https://src.fedoraproject.org/rpms/rust-uefi-raw.git /var/lib/mock/f45-build-45831-828/root/chroot_tmpdir/scmroot/rust-uefi-raw
Cloning into '/var/lib/mock/f45-build-45831-828/root/chroot_tmpdir/scmroot/rust-uefi-raw'...
$ git fetch origin f82ce5125ad7863a5ce87202e46c5f8f7e3256a4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uefi-raw
 * [new ref]         f82ce5125ad7863a5ce87202e46c5f8f7e3256a4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f82ce51 update to version 0.15.1