Versions

Minecraft Version: 1.12.2
Fun Ores Version: 1.6.2-123
Silent Lib Version: 3.0.9-159

Expected behavior

Shards of distinct types (ender, blaze, ghast) remember their identities regardless of being transferring into or out of containers.

Actual behaviour

Shift-clicking a stack of one type of shard into a container with at least one partial stack of another kind converts the transferred items to the target kind until the partial stack becomes a full stack. Any extra shards (i.e. that become new partial stacks in the container) remain the original type. Also happens when shift-clicking to remove the shards from a container or to transfer them between the hotbar and inventory.

Steps to reproduce the problem

1. Put a few shards of one type (e.g. ender shards) into a container (e.g. a chest)
2. Shift-click to transfer shards of another type (e.g. blaze shards) into the same container