$ git clone -n https://src.fedoraproject.org/rpms/rust-untrusted.git /var/lib/mock/f40-build-2328295-58867/root/chroot_tmpdir/scmroot/rust-untrusted
Cloning into '/var/lib/mock/f40-build-2328295-58867/root/chroot_tmpdir/scmroot/rust-untrusted'...
$ git fetch origin 8d3bf523501a1635505cda0d0e5236f7091f2a34:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-untrusted
 * [new ref]         8d3bf523501a1635505cda0d0e5236f7091f2a34 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8d3bf52 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild