[BUG] Continuous MaxHandlersExceededWarning in browser console

A MaxHandlersExceededWarning is being triggered continuously in the browser console. The warning indicates that the number of attached event handlers has exceeded the default limit (currently 25), and it appears to be compounding over time.

```
MaxHandlersExceededWarning: Possible Evt memory leak detected. 26 handlers attached.
Use Evt.prototype.setMaxHandlers(n) to increase limit on a specific Evt.
Use Evt.setDefaultMaxHandlers(n) to change the default limit currently set to 25.

1 handler like:
{
hasCtx: false,
once: false,
prepend: false,
extract: false,
isWaitFor: false,

[...]
```

The error does not appear just once; it triggers repeatedly, which progressively fills up the browser's console and makes it difficult to use.

Start by reproducing the warning in the browser and inspect where Evt handlers are repeatedly attached. Trace the accumulating handlers to the responsible frontend entry point, then verify that the console no longer fills with repeated MaxHandlersExceededWarning messages over time.

Written by the indexing model from the issue text.