$ git clone -n https://src.fedoraproject.org/rpms/sylpheed.git /var/lib/mock/f29-build-5218-1244/root/thebuilddir/tmp/scmroot/sylpheed
Cloning into '/var/lib/mock/f29-build-5218-1244/root/thebuilddir/tmp/scmroot/sylpheed'...
$ git reset --hard 801a8b182ffe893a00d743b03c764b1e9ffbde43
HEAD is now at 801a8b1 - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild