Fix creation of privilege with permissions.

Module was raising exceptions when trying to create a new privilege
with permissions. This change fixes the behavior and ensuure
idempotence with trying to create a privilege with the same values.

Tests for this behavior have been appended to:

    tests/privilege/test_privilege.yml

plugins/modules/ipaprivilege.py

@@ -234,14 +234,22 @@ def main():
                 if action == "privilege":
                     # Found the privilege
                     if res_find is not None:
+                        res_cmp = {
+                            k: v for k, v in res_find.items()
+                            if k not in [
+                                "objectclass", "cn", "dn",
+                                "memberof_permisssion"
+                            ]
+                        }
                         # For all settings is args, check if there are
                         # different settings in the find result.
                         # If yes: modify
-                        if not compare_args_ipa(ansible_module, args,
+                        if args and not compare_args_ipa(ansible_module, args,
-                                                res_find):
+                                                         res_cmp):
                             commands.append([name, "privilege_mod", args])
                     else:
                         commands.append([name, "privilege_add", args])
+                        res_find = {}
 
                     member_args = {}
                     if permission:

tests/privilege/test_privilege.yml

@@ -140,6 +140,30 @@
     register: result
     failed_when: result.changed or result.failed
 
+  - name: Ensure "Broad Privilege" is absent.
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      state: absent
+
+  - name: Ensure privilege Broad Privilege is created with permission. (issue 529)
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      permission:
+      - "Write IPA Configuration"
+    register: result
+    failed_when: not result.changed or result.failed
+
+  - name: Ensure privilege Broad Privilege is created with permission, again. (issue 529)
+    ipaprivilege:
+      ipaadmin_password: SomeADMINpassword
+      name: Broad Privilege
+      permission:
+      - "Write IPA Configuration"
+    register: result
+    failed_when: result.changed or result.failed
+
   # CLEANUP TEST ITEMS
 
   - name: Ensure privilege testing privileges are absent