$ git clone -n https://src.fedoraproject.org/rpms/rust-pem1.git /var/lib/mock/f40-build-2654698-66907/root/chroot_tmpdir/scmroot/rust-pem1
Cloning into '/var/lib/mock/f40-build-2654698-66907/root/chroot_tmpdir/scmroot/rust-pem1'...
$ git fetch origin 71239b402636a030765c80b003af9690d1bf4f0b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pem1
 * [new ref]         71239b402636a030765c80b003af9690d1bf4f0b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71239b4 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild