Routing logs missing after solving with cp-sat

[igorbanfi]

Hello

What version of OR-Tools and what language are you using?

Version: 9.15.6755
Language: Python

Which solver are you using (e.g. CP-SAT, Routing Solver, GLOP, BOP, Gurobi)

Solver: Routing solver and CP-SAT

What did you do?

After solving with CP-SAT solver the logs from routing solver are missing, even if enabled with search_parameters.log_search.

Example to reproduce the issue:
main.py

What did you expect to see
Logs to be configured independetly

What did you see instead?
Logs from the second run of routing solver are missing.