Werk #4381: Fixed exception when WATO ruleset without main group definition exists
| Component | Setup |
| Title | Fixed exception when WATO ruleset without main group definition exists |
| Date | Feb 20, 2017 |
| Checkmk Edition | Checkmk Raw (CRE) |
| Checkmk Version | 1.4.0b3 1.5.0i1 |
| Level | Trivial Change |
| Class | Bug Fix |
| Compatibility | Compatible - no manual interaction needed |
An exception "AttributeError ('NoneType' object has no attribute 'title')" could occur on WATO ruleset list pages when a custom Check_MK ruleset definition exists without previous register_rulegroup() call for the main group.
