Keys containing 'toString' may have surprising results

[alxndrsn]

Reporting a bug?

• $te('foo.bar.toString') returns true when foo.bar messages does not contain a key toString
• $t('foo.bar.toString') returns Object.prototype.toString when foo.bar messages does not contain a key toString

Expected behavior

• $te('foo.bar.toString') should return false when foo.bar messages does not contain a key toString
• $t('foo.bar.toString') should return 'foo.bar.toString' when foo.bar messages does not contain a key toString

Reproduction

#1707

System Info

N/A

Screenshot

No response

Additional context

No response

Validations

• Read the Contributing Guidelines
• Read the Documentation
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion
• The provided reproduction is a minimal reproducible example of the bug.