JobOptionsSvc returns integer for boolean properties

With the current Gaudi master branch we are seeing some unit test failures in ATLAS that come down to a change of behavior of the JobOptionsSvc when returning boolean property values. Take the following executable:

import GaudiPython.Bindings as GaudiPython
from Configurables import HelloWorld
alg = HelloWorld('HelloWorld',
                 Timeline = True)

theApp = GaudiPython.AppMgr()

# Read property from C++ JobOptionsSvc
from GaudiPython.Bindings import gbl, InterfaceCast
svc = gbl.GaudiPython.Helper.service(gbl.Gaudi.svcLocator(), "JobOptionsSvc")
joboptsvc = InterfaceCast(gbl.Gaudi.Interfaces.IOptionsSvc).cast(svc)

print('Timeline =',joboptsvc.get('HelloWorld.Timeline'))

In master, I am seeing:

ApplicationMgr       INFO Application Manager Configured successfully
Timeline = 1
ApplicationMgr       INFO Application Manager Terminated successfully

whereas in v36r14 I am getting:

ApplicationMgr       INFO Application Manager Configured successfully
Timeline = True
ApplicationMgr       INFO Application Manager Terminated successfully