rc.2 Port: Fix "savedOp" metadata property propagation for grouped ops (#20837)

[anthony-murphy]

Port of: #20837

Container class will set savedOp property on op before processing stashed ops. Container Runtime uses this information to differentiate ops.

I do not see us propagating savedOp metadata property from grouped ops (as visible in Container) to ungrouped ops. OpGroupingManager.ungroupOp() does not do it as far as I can see. I think we are getting lucky with ID compression ops as they are usually not grouped (there is usually a single ID compression op, as it's part of its own batch). When/if any of those assumptions change, this code would stop working.

Propagate properly this property.

[msfluid-bot]

⯅ @fluid-example/bundle-size-tests: +130 Bytes

Metric Name	Baseline Size	Compare Size	Size Diff
aqueduct.js	448.33 KB	448.4 KB	⯅ +65 Bytes
connectionState.js	680 Bytes	680 Bytes	■ No change
containerRuntime.js	250.95 KB	251.01 KB	⯅ +65 Bytes
loader.js	128.15 KB	128.15 KB	■ No change
map.js	41.36 KB	41.36 KB	■ No change
matrix.js	143.7 KB	143.7 KB	■ No change
odspDriver.js	97.66 KB	97.66 KB	■ No change
odspPrefetchSnapshot.js	42.36 KB	42.36 KB	■ No change
sharedString.js	161.71 KB	161.71 KB	■ No change
sharedTree.js	329.75 KB	329.75 KB	■ No change
Total Size	1.75 MB	1.75 MB	⯅ +130 Bytes

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Baseline commit: f324866

Generated by 🚫 dangerJS against 400f91f