$ git clone -n https://src.fedoraproject.org/rpms/rust-gimoji.git /var/lib/mock/f41-build-811101-147141/root/chroot_tmpdir/scmroot/rust-gimoji
Cloning into '/var/lib/mock/f41-build-811101-147141/root/chroot_tmpdir/scmroot/rust-gimoji'...
$ git fetch origin f4dc84ea696a184ce806df477bcaaf8d031cf925:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-gimoji
 * [new ref]         f4dc84ea696a184ce806df477bcaaf8d031cf925 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f4dc84e Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces