ActiveMQArtemisSecurity adds whitespaces in a comma-separated list of users which belonging to the same role

The operator adds whitespaces in a comma-separated list of users which belonging to the same role when using the properties login module:

$ oc rsh amq-broker-ss-0 cat /home/jboss/amq-broker/etc/artemis-roles.properties
admin = admin
userRole = bob, alice

The broker is not able to deal with the whitespaces and doesn't assign "alice" to the role "userRole".