JQL function returns error when the filter name contains hyphens ("-")

When using a JQL function with a filter that contains hyphens ("-") in the name, it returns an error saying that the argument is not a valid issue or saved filter.

Steps to reproduce:

1. Create a saved filter which includes "-" in the name, e.g. "My - filter".
2. Use a JQL function with that filter, e.g.:

key in requirementTests("My - filter")

Expected result: The filter is found and the JQL function does not return an error.

Actual result: The JQL function returns the error "Argument 'My - filter' is not a valid Requirement issue nor a valid saved filter.".