CTR touchup docs and comments

CHANGELOG.asciidoc

@@ -29,7 +29,7 @@ image::https://raw.githubusercontent.com/apache/tinkerpop/master/docs/static/ima
 * Fixed bug in bytecode translation of `g.tx().commit()` and `g.tx().rollback()` in all languages.
 * Improved error message from `JavaTranslator` by including exception source.
 * Added missing `short` serialization (`gx:Int16`) to GraphSONV2 and GraphSONV3 in `gremlin-python`.
-* Added tests for error handling for GLV's if `tx.commit()`` is called remotely for graphs without transactions support.
+* Added tests for error handling for GLV's if `tx.commit()` is called remotely for graphs without transactions support.
 * Introduced multi-architecture AMD64/ARM64 docker images for gremlin-console.
 * Fixed bug in `JavaTranslator` where `has(String, null)` could call `has(String, Traversal)` to generate an error.
 * Fixed issue where server errors weren't being properly parsed when sending bytecode over HTTP.

gremlin-core/src/main/java/org/apache/tinkerpop/gremlin/process/traversal/step/map/MergeVertexStep.java

@@ -93,10 +93,10 @@ protected Iterator<Vertex> flatMap(final Traverser.Admin<S> traverser) {
             // attach the onMatch properties
             vertices = IteratorUtils.peek(vertices, v -> {
 
-                // override current traverser with the matched Edge so that the option() traversal can operate
+                // override current traverser with the matched Vertex so that the option() traversal can operate
                 // on it properly. this should only work this way for the start step form to retain the original
                 // behavior for 3.6.0 where you might do g.inject(Map).mergeV() and want that Map to pass through.
-                // in 4.x this will be rectified such that the edge will always be promoted and you will be forced
+                // in 4.x this will be rectified such that the vertex will always be promoted and you will be forced
                 // to select() the map if you did want the behavior.
                 if (isStart) traverser.set((S) v);