Fishing pond UI persists and appears at clock tower after catching in pond

### Build version
Not specified

### Issue Description
After catching something in the fishing pond and then moving to the clock tower, the fishing pond UI reappears when taking the elevator — even though the player is no longer near the pond. The UI appears to be cached and not properly dismissed when leaving the pond area.

### STR (Steps to Reproduce)
1. Open the app
2. Go to the pond
3. Catch something in the pond
4. Go to the clock tower
5. Take the elevator
6. Check UI — the fishing pond UI appears unexpectedly

### Expected Result
The fishing pond UI should be dismissed once the player leaves the pond area. No pond-related UI should appear at the clock tower.

### Actual Result with evidence
The fishing pond UI renders at the clock tower after taking the elevator, despite the player no longer being near the pond.

### Reproduction
Intermittent (1/10)

### Operative system and additional Notes
Windows

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Reported by daf
Requested by Dawid Krajewski (<@U079GRD9WTZ>)

Reproduce the issue by following the listed pond-to-clock-tower steps, then trace where the fishing pond UI is opened and dismissed during the elevator transition. Verify the pond UI is cleared after leaving the pond and no longer appears at the clock tower; account for the reported intermittent reproduction rate.

Written by the indexing model from the issue text.