CAY-1866 Change in General Modeler Preferences reverts old settings to default value

patch by      Miłosz Pigłas

git-svn-id: https://svn.apache.org/repos/asf/cayenne/main/branches/STABLE-3.1@1517624 13f79535-47bb-0310-9956-ffa450edef68
CAY-1866 Change in General Modeler Preferences reverts old settings to default value

release notes

git-svn-id: https://svn.apache.org/repos/asf/cayenne/main/branches/STABLE-3.1@1517625 13f79535-47bb-0310-9956-ffa450edef68