Is this a regression?
The previous version in which this bug was not present was
No response
Description
This error message "Listbox cannot have more than one selected value in multi-selection mode." does not really make sense. I guess it should say that "in single-selection mode" or "when not in multi-selection mode".
Reproduction
No reproduction as this is just logic error in the text error.
Expected Behavior
Actual Behavior
Environment
Angular CLI : 21.0.5
Angular : 21.0.8
Node.js : 22.21.1