Modified distributed dict usage.
An issue caused by commit fbbd5d365b6c2b8dd998f0a3fb29dfff5e740775
was detected when testing the code.
Only one sample was analysed because modifications to
the distributed dict were not propagated through the manager.

Signed-off-by: Pier-Luc Plante <pier-luc.plante.1@ulaval.ca>