testsuite::test_common_props_setting - test that common properties can be set as defaults, not elseSynopsis:
(test_common_props_setting) run -> compare response with reference dataDescription:
For synapses with common properties, ensure that common and individual properties can be set by
SetDefaults and CopyModel, but that an exception is raised if they are set via an individual connection.
Hans E PlesserFirstVersion: