Are you asking specifically about PR1241326, for EX2200/EX3300? If yes, then this PR is fixed in 15.1R6. Please note that for EX2200, 15.1 is NOT recommended to be used, and I might caution it use with any legacy EX, including EX3300. Instead use latest and greatest 12.3, which I believe for right now, is 12.3R12-S6?
If you are going to use 15.1, I'd suggest you use 15.1R6-S3.
You can find latest S releases by looking under Type/OS on support web and choosing Junos SR.
Hopefuly this helps you.