$ git clone -n https://src.fedoraproject.org/rpms/bchunk.git /var/lib/mock/f31-build-75273-31247/root/chroot_tmpdir/scmroot/bchunk
Cloning into '/var/lib/mock/f31-build-75273-31247/root/chroot_tmpdir/scmroot/bchunk'...
$ git reset --hard 4fdea36a22fc9f4f5d5e7cd1fa39f9bf1dd52fcd
HEAD is now at 4fdea36 - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild