When using shift+double-click to fill crafting grid with stacks of one item (specifically, iron ingots to craft an iron block), Minecraft sometimes instead sends all inventory stacks of a different item to the crafting grid (specifically, previously-crafted iron blocks). To date, I have only seen this error affect iron ingots/iron blocks. I have not attempted to reproduce it in Creative mode. This error only usually seems to happen when I have at least four stacks of iron blocks in my inventory. [Immediately after submitting this report, I reproduced the error with only two stacks of iron blocks in my inventory.] Error does not seem related to which inventory slots are occupied by which items. I have not been able to determine the exact circumstances to reliably reproduce the error; it occurs frequently but seemingly randomly.

Screenshot taken immediately after shift+double-clicking on a stack of iron ingots while holding a stack of iron ingots. Note that the stack of iron ingots I clicked on did not move to the crafting bench, but all inventory stacks of iron blocks did.