$ git clone -n https://src.fedoraproject.org/rpms/rust-blake2.git /var/lib/mock/f41-build-side-1-2769149-32104/root/chroot_tmpdir/scmroot/rust-blake2
Cloning into '/var/lib/mock/f41-build-side-1-2769149-32104/root/chroot_tmpdir/scmroot/rust-blake2'...
$ git fetch origin 655651f49f74d4b2efcea647f1ba9a6f2088b796:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-blake2
 * [new ref]         655651f49f74d4b2efcea647f1ba9a6f2088b796 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 655651f Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild