Steps to Reproduce:

• Create 4 versions in a project (e.g. 1, 2, 3 and 4)
• Add version 1 AND version 4 to a version field (i.e. FixVersion)
• In the Issue navigator, filter issues using FixVersion >= 2 and FixVersion <= 3

Expected Results
JIRA should only retrieve issues that contain versions between 2 and 3

Actual results
JIRA returns issues that have any two versions as long as one is bigger than 2 and one is lower than 3.