Assembler in co-op mode stops working when first item in queue is unbuildable

In short, if a co-op assembler queues up components it does not have the ingredients to create, it hangs and stops pulling other items that it could build. Expectation is that it would move onto the next item in the master's build queue when it is unable to build the first item

Setup:

1. 2 Assemblers & a cargo container connected via conveyors
2. Put iron ingots into the cargo block
3. Configure one assembler into co-op mode
4. In the master assembler (not in co-op), queue up 100 steel plates
5. Observe that the job gets split across the assemblers with both building roughly half of the plates
6. In the master assembler, queue up 100 super conductors (or any other component for which the grid does not have access to the ingredients)
7. Observe that the co-op assembler takes responsibility for these items onto itself, even though it is unable to build them, but it leaves at least one item in the master's queue
8. In the master assembler, queue up 100 steel plates
9. Observe that the master assembler builds all 100, the co-op does not take any of them, even though it is idle with no work it is capable of doing.

Workaround:

Manually re-ordering the build queue so that a buildable item is in the first position on the master assembler's queue or canceling the unbuildable item in the master's queue will enable the co-op assembler to see and start building additional components.