Description of problem:

Overriding boolean variables imported from ansible roles does not seem to work when running ansible roles.

Version-Release number of selected component (if applicable):
6.6

How reproducible:
Always

Steps to Reproduce:
1. Import a role having boolean value true/false in defaults. example flag: true
2. Import the variables and override variable value. Example override flag to false
3. Assign the role to a host and run roles and notice the value is not overridden

For all non boolean overridden variables, the overridden value can be seen in dynflow task details under ansible_inventory json. But the boolean overridden variables never reach there and hence never makes to role execution.

Expected results:

Boolean vars overriding should work as other types work

Additional info: