$ git clone -n https://src.fedoraproject.org/rpms/libmatroska.git /var/lib/mock/f33-build-126269-40015/root/chroot_tmpdir/scmroot/libmatroska
Cloning into '/var/lib/mock/f33-build-126269-40015/root/chroot_tmpdir/scmroot/libmatroska'...
$ git reset --hard 787a9999cdf12146764dd5f0c5d8fc779793c1d5
HEAD is now at 787a999 - Rebuilt for https://fedoraproject.org/wiki/Fedora_32_Mass_Rebuild