$ git clone -n https://src.fedoraproject.org/rpms/rust-snphost.git /var/lib/mock/f40-build-1967979-25215/root/chroot_tmpdir/scmroot/rust-snphost
Cloning into '/var/lib/mock/f40-build-1967979-25215/root/chroot_tmpdir/scmroot/rust-snphost'...
$ git fetch origin 70650e3955f9e568d785bbbec3599ae0998b0827:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-snphost
 * [new ref]         70650e3955f9e568d785bbbec3599ae0998b0827 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70650e3 Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces