$ git clone -n https://src.fedoraproject.org/rpms/libextractor.git /var/lib/mock/f31-build-44076-25875/root/thebuilddir/tmp/scmroot/libextractor
Cloning into '/var/lib/mock/f31-build-44076-25875/root/thebuilddir/tmp/scmroot/libextractor'...
$ git reset --hard 6a74a9177760ee2e4b347ed482d9959f0ab376b7
HEAD is now at 6a74a91 Rebuild for RPM 4.15