Optional user profile fields not shown in full profile

BEFORE UPGRADE Prepare student s1 filling all the fields available in his profile with some data. Enrol teacher t1, student s1 and student s2 in course C1. As teacher in course C1 look at the s1 profile and verify you can NOT see "phone1, phone2, institution, department, idnumber, address". The same can be tested as admin. Repeat this verification as student s2 looking at the s1 profile. As admin select "skype" as "hiddenuserfields" in (Users / Permissions / User policies). Verify "phone1, phone2, institution, department, idnumber, address" are not avaible to be selected as "hiddenuserfields". AFTER UPGRADE As admin verify that fields "phone1, phone2, institution, department, idnumber, address" has been added in "hiddenuserfields" (Users / Permissions / User policies) and they have been automatically selected. The field "skype" is still selected. As student s2 in course C1 look at the s1 profile and verify you can NOT see the hiddenfields selected. As teacher t1 or admin look at the s1 profile and verify NOW YOU CAN SEE all the hiddenfields selected. As admin unselect in hiddenfields "institution, department". As student s2 in course C1 look at the s1 profile and verify now you can see fields "institution, department".