Update CachedGraphTransaction.java

format code using  hugegraph code style

hugegraph-core/src/main/java/com/baidu/hugegraph/backend/cache/CachedGraphTransaction.java

@@ -394,10 +394,12 @@ protected final void commitMutation2Backend(BackendMutation... mutations) {
                 }
             }
 
-            // Update edge cache if any vertex or edge change
-            // for vertex change, the edge associated with that vertex should also be updated
-            // here we just clear all the edge cache , before we use a more precise strategy
-            boolean invalidEdgesCache = (this.edgesInTxSize() + updates.size() + deletions.size()) > 0;
+            /*
+             * Update edge cache if any vertex or edge changed
+             * For vertex change, the edges linked with should also be updated
+             * Before we use a more precise strategy,now we just clear all the edge cache
+             */
+            boolean invalidEdgesCache = (edgesInTxSize + updates.size() + deletions.size()) > 0;
             if (invalidEdgesCache && this.enableCacheEdge()) {
                 // TODO: Use a more precise strategy to update the edge cache
                 this.edgesCache.clear();