$ git clone -n https://src.fedoraproject.org/rpms/libpst.git /var/lib/mock/f29-build-5395-1284/root/thebuilddir/tmp/scmroot/libpst
Cloning into '/var/lib/mock/f29-build-5395-1284/root/thebuilddir/tmp/scmroot/libpst'...
$ git reset --hard 15904fad2a60c9fbbfbdcec083af42d5d9710a33
HEAD is now at 15904fa - Rebuilt for https://fedoraproject.org/wiki/Fedora_28_Mass_Rebuild