$ git clone -n https://src.fedoraproject.org/rpms/yaz.git /var/lib/mock/f31-build-71688-30675/root/thebuilddir/tmp/scmroot/yaz
Cloning into '/var/lib/mock/f31-build-71688-30675/root/thebuilddir/tmp/scmroot/yaz'...
$ git reset --hard 456c9be82166d1e7ebd3d2a30f960eada2693f06
HEAD is now at 456c9be - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild