### Affected Component The reducer of core ### Current Behavior When merging 3 segments into one, `optimze()`/`merge()` will create a new empty segments as the target segment. ### Desired Improvement Take the first segment as the target segment to avoid rebuilding the graph. ### Impact Reduce the cost of optimizing operation.
Affected Component
The reducer of core
Current Behavior
When merging 3 segments into one,
optimze()/merge()will create a new empty segments as the target segment.Desired Improvement
Take the first segment as the target segment to avoid rebuilding the graph.
Impact
Reduce the cost of optimizing operation.