$ git clone -n https://src.fedoraproject.org/rpms/rust-blosc2-rs.git /var/lib/mock/f42-build-3252991-41225/root/chroot_tmpdir/scmroot/rust-blosc2-rs
Cloning into '/var/lib/mock/f42-build-3252991-41225/root/chroot_tmpdir/scmroot/rust-blosc2-rs'...
$ git fetch origin cfd0b5a2bd1e50b95a875c6d243758eb9da6ad3e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-blosc2-rs
 * [new ref]         cfd0b5a2bd1e50b95a875c6d243758eb9da6ad3e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at cfd0b5a Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild