Unexpected interaction between Vocab words and existence rule

[aglet]

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• Completed

Environment

• macOS 26.1 (25B78)
• installed via Homebrew
• vale version 3.13.0

Describe the bug / provide steps to reproduce it

I've noticed some odd behaviour; when a word is in a custom vocabulary then an existence rule with that word is not applied. I've stuck some example configs below.

bug.ini

StylesPath = styles
MinAlertLevel = suggestion

Vocab = Bug

[*.md]

[bug.md](https://github.com/user-attachments/files/24054800/bug.md)

BasedOnStyles = Bug, Vale

styles/Bug/Quotes.yml

extends: existence
message: "Commas and periods go inside quotation marks."
level: warning
nonword: true
tokens:
  - '"[^"]+"[.,]'

styles/config/vocabularies/Bug/accept.txt

plugh

bug.md

# This illustrates something weird

We have added plugh as an extra word in our vocabulary, so this line is fine.

This line also does not contain any violations; the word is in our dictionary and the quotes contain the period "plugh."

On this line is a normal word in "quotes", that the Quotes rule marks as a violation as we would expect.

This is the extra word in quotes: "plugh", which should fall foul of the "Quotes" rule but does not.

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Steps to reproduce / observed behaviour

vale --config bug.ini bug.md

 bug.md
 7:34  warning  Commas and periods go inside    Bug.Quotes 
                quotation marks.                           

✖ 0 errors, 1 warning and 0 suggestions in 1 file.

If the custom vocab is deactivated (comment out the Vocab = Bug line in the ini file) then the rule is applied:

vale --config bug.ini bug.md

 bug.md
 3:15   error    Did you really mean 'plugh'?    Vale.Spelling 
 5:114  error    Did you really mean 'plugh'?    Vale.Spelling 
 7:34   warning  Commas and periods go inside    Bug.Quotes    
                 quotation marks.                              
 9:35   warning  Commas and periods go inside    Bug.Quotes    
                 quotation marks.                              
 9:36   error    Did you really mean 'plugh'?    Vale.Spelling 

✖ 3 errors, 2 warnings and 0 suggestions in 1 file.

Expected behaviour

Quote rule gets applied to all words including ones in custom vocab.

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