Invisible stored water in Prepper cache

[Retro Seamstress]

I was recently in Forlorn Muskeg and popped into the Prepper cache above Spence's to escape a blizzard one night. While groping around in the dark for the bed I saw "Stored Water" pop up, which I thought was strange as I didn't remember there being any stored water in this bunker. I'm playing on Interloper and the bunker that spawned was the usual minimal one with one tiny room and just a bed and a few cardboard boxes. I pulled clicked on the "Stored Water" and got 0.60L of water. I pulled out my lantern to have a look and couldn't see anything. Maybe there's a hot water bottle hiding under the blanket  Anyone else found this before?

[SpanishMoss]

I've seen this as well lol

If you haven't already, make a bug report 

[A Big Red Dawg]

Water in the cracks in the walls?