New melee contacts now blend their formation centers onto the resolved adjacent tiles during the attack's settling phase.
Individual soldiers simultaneously fan from marching ranks into the shared-border engagement layout.
Existing engagements remain stationary and retain their already-spread combat formation.
No unique screenshot: this is a transition/animation smoothness change with no static-image signature (like audio, a still frame can't show smoothness), and its settled end-state — soldiers fanned along a shared border — is the same visual state already captured in progress/053-shipped-reconstructed-multi-border-melee.png (Iterations 26/32). Linked rather than reconstructed separately (2026-09-15).