This was brought to my attention due to #342
Basically Quern use method is always returning ActionResultType.Pass which causes other interaction methods to be called (block placement for example), while they should return ActionResultType.sideSuccess(world.isClientSide) when their interaction action succeds. This is noticeable by simply clicking the block with a block item: the block will spin & the block item will get placed too while only one action should occur. I've also seen this happen with other blocks but I didn't delve in any further.