$ git clone -n https://src.fedoraproject.org/rpms/rust-rpick.git /var/lib/mock/f41-build-811010-147129/root/chroot_tmpdir/scmroot/rust-rpick
Cloning into '/var/lib/mock/f41-build-811010-147129/root/chroot_tmpdir/scmroot/rust-rpick'...
$ git fetch origin 058549b8ef86920b68c5e509e39e24f17164c1b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rpick
 * [new ref]         058549b8ef86920b68c5e509e39e24f17164c1b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 058549b Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces