fix: mirror throwing prematured toasts

[bigint]

What does this PR do?

Fixes # (issue)

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Enhancement (non-breaking small changes to existing functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How should this be tested?

• Test A
• Test B

Checklist

• I haven't read the contributing guide
• My code doesn't follow the style guidelines of this project
• I haven't performed a self-review of my own code and corrected any misspellings
• I haven't commented my code, particularly in hard-to-understand areas
• I haven't checked if my PR needs changes to the documentation
• I haven't checked if my changes generate no new warnings
• I haven't added tests that prove my fix is effective or that my feature works
• I haven't checked if new and existing unit tests pass locally with my changes

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Name	Status	Preview	Updated (UTC)
prerender	✅ Ready (Inspect)	Visit Preview	Apr 3, 2023 4:43am
web	✅ Ready (Inspect)	Visit Preview	Apr 3, 2023 4:43am