shift-clicking a locked slot removes the locked item, making it a blank slot, I use different danks for stones and ores and id like to be able to lock the ores into the dank null and not have them all taken out when I shift-click on them, having it no longer have the item locked makes it difficult to do so

Confirmed, but shift clicking code is a disaster and I'm not eager to fix it right now.

Implemented a proper fix in the 1.18+ versions, if someone wants to backport the commit, I'll merge it in, but all focus is on 1.18 and up from now on.

Also applies to locked slots interacting with hoppers and using them in construction mode, locked slots do virtually nothing.