$ git clone -n https://src.fedoraproject.org/rpms/rust-asn1-rs.git /var/lib/mock/f42-build-3252984-41225/root/chroot_tmpdir/scmroot/rust-asn1-rs
Cloning into '/var/lib/mock/f42-build-3252984-41225/root/chroot_tmpdir/scmroot/rust-asn1-rs'...
$ git fetch origin 984d13e8ca3650e3165e520f1ef93e4dae0ccccd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-asn1-rs
 * [new ref]         984d13e8ca3650e3165e520f1ef93e4dae0ccccd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 984d13e Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild