rsync -R/--relative not working as expected

[luisb]

It appears that the -R, --relative option is not taking effect.

For instance, I gave the following command:
msrsync3 -p 4 -P --stats --rsync "-aSR" ./batch_curiv_dlc03/HTES ./batch_curiv_dlc05/SoSc ./batch_curiv_elcapitan/HE batches_healdsburg/

I was expecting the resulting tree to look like this:

batches_healdsburg
├── batch_curiv_elcapitan
    ├── HE
├── batch_curiv_dlc03
    ├── HTES
└── batch_curiv_dlc05
    ├── SoSc

However, the resulting tree looks like this:

batches_healdsburg
├── HE
├── HTES
└── SoSc

The parent directories were not included in the final path.