Avoid accessing protected methods.

Credential_updatePersonPassword is doing the same check, and it is proxied
script.

CredentialUpdate_updatePersonInformation is not proxied script, and accessing
getPassword requires a lot of privileges.

bt5/erp5_credential/SkinTemplateItem/portal_skins/erp5_credential/CredentialUpdate_updatePersonInformation.xml

@@ -83,8 +83,7 @@ person_mapping = (\n
 \n
 context.Credential_copyRegistredInformation(person, person_mapping,copy_none_value=False)\n
 \n
-if context.getPassword():\n
-  context.Credential_updatePersonPassword()\n
+context.Credential_updatePersonPassword()\n
 \n
 #Update the photo\n
 context.CredentialUpdate_copyDefaultImage()\n

bt5/erp5_credential/bt/revision

-401
\ No newline at end of file
+402
\ No newline at end of file