Having trouble with the issueFieldMatch

[Aric Turner]

I'm trying to use the issueFieldMatch regex and the results are not as expected.  I have issues with labels "COMMITTED" and "UNCOMMITTED".  If I use: issueFunction in issueFieldMatch("project=TEST", labels, 'COMMITTED'), it returns the issues with both "COMMITTED" and "UNCOMMITTED" (as expected for searching anywhere in the string).  However, if I use: issueFunction in issueFieldMatch("project=TEST", labels, '^COMMITTED$') then it returns no results. 

I cannot find any regex pattern that will return an exact match to "COMMITTED" and exclude the "UNCOMMITTED".  ^*COMMITTED returns the UNCOMMITTED and COMMITTED.  Negative lookahead doesn't seem to work - i.e. ^*(?!UNCOMMITTED)COMMITTED* returns UNCOMMITTED and COMMITTED.  ^(?!UNCOMMITTED)COMMITTED* returns nothing.

I have a more complex query expression that I want to replace "project=TEST", but I need the regex to work first. 

[Aric Turner]

I think I've found a partial answer.  JIRA seems to add an unprintable character at the beginning of the label field.  This works (only returns issues with "COMMITTED" labels):

issueFunction in issueFieldMatch("project=TJPF", labels, '^.COMMITTED')

Adding the anchor is not the entire solution.  If the issue has several labels, then the anchor will only force a match with the first label.  For example, if the issue also had a label "2018Q1", that label would be listed alphabetically before "COMMITTED" and then the above regex will not return the issue.