Issue Summary

Using JQL / search CONTAINS ("~") for a word that starts with a hyphen ("-") or underscore ("_") results incorrect results

Steps to Reproduce

1. Run a JQL search for a specific project and see how many issues are returned.
2. Add:

   summary ~ "-something" 

   or

   summary ~ "_something" 

Expected Results

Only issues with "-something" are returned, or alternatively, if using hyphen at the start of the string is not supported, an error message is displayed.

Actual Results

All issues in the project are returned.

Notes:

• Using "-x" or any other letter combinations instead of "-something" gives the same result:
  • 
• Using numbers instead of letters does seem to give different( although still incorrect) results:
  • 
• Using just a hyphen as the only search term does give an error stating "Unable to parse the text '-' for field 'summary'."
  • 

Workaround

• Avoiding hyphens at the start of a "CONTAINS" search, although the risk of this behavior is that it gives incorrect results without any indication, and it can easily mislead users with the results.
• Using Exact phrase search seems to a void this behavior, as it ignores hyphens, for example this would return no issues (unless there is a specific issue with the word "something" on its own:

  project = SCRUM01 and summary ~ "\"-something\""