$ git clone -n https://src.fedoraproject.org/rpms/rust-python-launcher.git /var/lib/mock/f38-build-side-43-rust-devel-1417590-31459/root/chroot_tmpdir/scmroot/rust-python-launcher
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1417590-31459/root/chroot_tmpdir/scmroot/rust-python-launcher'...
$ git fetch origin f0dd52babf949bac42722a54a8a3ca057472d8d6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-python-launcher
 * [new ref]         f0dd52babf949bac42722a54a8a3ca057472d8d6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f0dd52b Rebuild for fixed frame pointer compiler flags in Rust RPM macros