Error in XML exported file when User has missing permission for Host Prototype Group

1. Log in as Super Admin.
2. Create Host group HOST_GROUP with host HOST.
3. On HOST create Discovery rule RULE with {#HOST_PROTOTYPE}
4. {#HOST_PROTOTYPE} assign to group Zabbix servers.
5. Create USERS_GROUP with W+R permissions for HOST_GROUP and with NONE/DENY permissions for Zabbix servers.
6. Create USER with Simple Admin rights and add him to USERS_GROUP
7. Log in with USER.
8. Open Configuration ->Hosts, find HOST, check it and Export.
9. Open Exported XML file.
Result:
Exported file contains error:
[error] System error occurred. Please contact Zabbix administrator.

Expected:
Error message should be displayed to user and should be more descriptive.