$ git clone -n https://src.fedoraproject.org/rpms/rust-oxipng.git /var/lib/mock/f41-build-810814-146957/root/chroot_tmpdir/scmroot/rust-oxipng
Cloning into '/var/lib/mock/f41-build-810814-146957/root/chroot_tmpdir/scmroot/rust-oxipng'...
$ git fetch origin 1ade2f09b6848e5ccf0b322c960411c5693001a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-oxipng
 * [new ref]         1ade2f09b6848e5ccf0b322c960411c5693001a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ade2f0 Rebuild with Rust 1.78 to fix incomplete debuginfo and backtraces