fix: merge duplicate UIDs in weight computation #467

Job	Run time
Clippy	1m 45s
Build	2m 35s
Test	1m 21s
Coverage	1m 36s
Nightly Build & Test	0s
Docker Nightly Build	-1s
Docker	1m 24s
E2E	1m 18s
Docker Integration (5 Validators + WASM)	1m 35s
Integration	1m 22s
Release	1s
	12m 56s

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