[Bug] Implicit role doesn't work in java lib 'jcasbin' but work in casbin editor

[yuzhenling]

Describe the bug This is a similar bug as https://github.com/casbin/casbin/issues/1204 , but this is in java. We are using RBAC with domain model to do authorization. And using group policy to extend one role to another.

In the casbin editor below we can see that can_manage extends can_use role in all domain, and user with can_manage role can also perform can_use action like attach.

https://editor.casbin.org/#DQV237WAL

But same logic doesn't work in casbin java lib even latest version v1.32.3

To Reproduce

model is 
[request_definition]
r = sub, dom, obj, act

[policy_definition]
p = sub, dom, obj, act

[role_definition]
g = _, _, _

[policy_effect]
e = some(where (p.eft == allow))

[matchers]
#RBAC
m = g(r.sub, p.sub, r.dom) && keyMatch(r.dom, p.dom) && keyMatch(r.obj, p.obj) && regexMatch(r.act, p.act)

public void setDefaultPoliciesForCasbin(DefaultPolicyModel dpm){
        Enforcer e = CasbinEnforce.getInstance().getEnforcer();

        e.addPolicy("can_manage", "engines/*", "*", "(pause)|(resume)");
        e.addPolicy("can_use", "engines/*", "*", "(attach)|(detach)");

        e.addGroupingPolicy("can_manage", "can_use", "*");
        e.addGroupingPolicy("Username==test2", "can_manage", "engines/engine1");

        List<String> r = e.getImplicitRolesForUser("Username==test2", "engines/engine1");
        System.out.println("r " + r);
        EnforceResult enforceEx = e.enforceEx("Username==test2", "engines/engine1", "*", "attach");
        System.out.println(enforceEx.toString());

    }

Expected behavior implicitRoles should be can_manage and can_use and ok should be true

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[casbin-bot]

@tangyang9464 @JalinWang

[casbin-bot]

@tangyang9464 @imp2002