When you quick cast Stash from your inventory by pressing Q on it, it returns you the stash icon in item form outside of spell select mode while you're in the ender chest gui (see screencap)

Basically it lets players have a mostly functional, unbreakable diamond axe that can let random noobs instantly learn stash by exploiting the way quick cast spells work.

Small issue, but it's bound to be exploited once enough people get into the server
Thanks!

Thanks, this will be fixed in the next dev build and in the 7.5.4 release.

Again, thank you for your work!