How can I search for exact text in square brackets?

[Cash Coyne]

I am trying to find all issues that have this text in the summary:  "[BA]"   (without the quotes)

This is the query that I am using:

summary ~ "\"\\[BA\\]\""

But it also returns text that DOES NOT have the brackets.

How can I do this properly?

[Mash Huang]

Try this JQL:

issueFunction in issueFieldMatch("project=ABC", "summary", "\\[BA\\]") order by created

[Rob Camarda]

I found a document that states special characters are not stored. 

See this Link 

[Boris Toet]

I was just looking for the same. Are you also on an older version of Jira? I did find this:

https://answers.atlassian.com/questions/54308