changelog: add notes about closing #11800

[skip ci]

CHANGELOG.md

@@ -5,6 +5,7 @@
 * **Graph**: Show invisible highest value bucket in histogram [#11498](https://github.com/grafana/grafana/issues/11498)
 * **Dashboard**: Enable "Save As..." if user has edit permission [#11625](https://github.com/grafana/grafana/issues/11625)
 * **Prometheus**: Table columns order now changes when rearrange queries [#11690](https://github.com/grafana/grafana/issues/11690), thx [@mtanda](https://github.com/mtanda)
+* **Variables**: Fix variable interpolation when using multiple formatting types [#11800](https://github.com/grafana/grafana/issues/11800), thx [@svenklemm](https://github.com/svenklemm)
 
 # 5.1.1 (unreleased)