Werk #12963: Fix BI aggregation work tree
| Component | User interface |
| Title | Fix BI aggregation work tree |
| Date | Jun 17, 2021 |
| Checkmk Edition | Checkmk Raw (CRE) |
| Checkmk Version | 1.6.0p25 2.0.0p6 2.1.0b1 |
| Level | Trivial Change |
| Class | Bug Fix |
| Compatibility | Compatible - no manual interaction needed |
Sometimes several trees were opened when a single tree was clicked to open.
