Seed pod is cracking open

[Stray59]

Hello Everyone - Merry Christmas!
I have crossed a BLC and a SLC that I really like. The cross took and a couple months ago the seed pod formed. It is now huge and today I noticed two cracks had formed along the top two edges of the pod. The cracks don't go to the seeds yet, but I am sure that is where it is headed.
I want to flask these seeds, and have never had a pod mature. Should I tape a baggie around the pod in case it completely opens? The pod is still green - should I wait until it starts to dry before I remove it? - I really don't think it will last that long, but again I am in unknown territory here.
Any info about this is appreciated.
Again, Happy Holidays !
Steve