[Bug]: Frequent OnAdjacentTo error

[lL1l1]

Describe the Bug

Originates from #6093. The new ZXA0003 unit seems to cause a bug with adjacency since adjacency expects a Unit.EntityId but DummyUnit does not assign self.EntityId.
The line numbers below are modified to include my warning code of which adjacent unit doesn't have the entity ID, the correct line is 787 instead of 790.

warning: adjacent unit does not have self.EntityId: zxa0003
warning: Error running OnAdjacentTo script in Entity ueb0302 at 1b9ffe08: ...\documents\github\fa\lua\sim\units\structureunit.lua(790): table index is nil
         stack traceback:
         	...\documents\github\fa\lua\sim\units\structureunit.lua(790): in function <...\documents\github\fa\lua\sim\units\structureunit.lua:776>

Reproduce the bug

Replay 23216422

Screenshots

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Additional context

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