This inspired me to fire up the N64 and try it. First attempt, I blew up the mine accidentally and lost all my health, so you can definitely trigger your own mines. Second attempt, I placed it and picked up the crate, and the mine disappeared! And it could definitely blow up in that state too. But when I tried it again and let the crate respawn, I could see the mine again. So, shrug?
But I’m impressed, I never knew about this till now.
I’d like to imagine this is analogous to autocomplete on a keyboard, like if I mash “A” a few times to get to the title screen and game’s like “Did you mean A A A A A Start Start Down Start A A B Right Right…”