$ git clone -n https://src.fedoraproject.org/rpms/rust-blosc2-sys.git /var/lib/mock/f42-build-side-1-3587364-46931/root/chroot_tmpdir/scmroot/rust-blosc2-sys
Cloning into '/var/lib/mock/f42-build-side-1-3587364-46931/root/chroot_tmpdir/scmroot/rust-blosc2-sys'...
$ git fetch origin 5ad374d5de2b97254bc0129afd0dc4e656eef69b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-blosc2-sys
 * [new ref]         5ad374d5de2b97254bc0129afd0dc4e656eef69b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5ad374d No longer required for rust-libcramjam-0.7 (experimental features disabled), and rust-libcramjam0.6 is now retired. Furthermore, there are unresolved unsoundness issues; see https://github.com/milesgranger/blosc2-rs/issues/32 and the discussion in https://github.com/milesgranger/blosc2-rs/pull/34.