BatchUpdate: Fix swapped comments in ChangeContextImpl

ChangeContextImpl maintains two maps for updates, one for default
updates that are combined into a single NoteDb commit and distinct
updates the go each into their own NoteDb commit. The comments on these
maps were swapped.

Release-Notes: skip
Signed-off-by: Edwin Kempin <ekempin@google.com>
Change-Id: Id0ef267f536c700f8983a2f14f4b57b3f5048a29
diff --git a/java/com/google/gerrit/server/update/BatchUpdate.java b/java/com/google/gerrit/server/update/BatchUpdate.java
index 2966fd7..2572271 100644
--- a/java/com/google/gerrit/server/update/BatchUpdate.java
+++ b/java/com/google/gerrit/server/update/BatchUpdate.java
@@ -296,15 +296,15 @@
     private final ChangeNotes notes;
 
     /**
-     * Updates where the caller instructed us to create one NoteDb commit per update. Keyed by
-     * PatchSet.Id only for convenience.
+     * Updates where the caller allowed us to combine potentially multiple adjustments into a single
+     * commit in NoteDb by re-using the same ChangeUpdate instance. Will still be one commit per
+     * patch set.
      */
     private final Map<PatchSet.Id, ChangeUpdate> defaultUpdates;
 
     /**
-     * Updates where the caller allowed us to combine potentially multiple adjustments into a single
-     * commit in NoteDb by re-using the same ChangeUpdate instance. Will still be one commit per
-     * patch set.
+     * Updates where the caller instructed us to create one NoteDb commit per update. Keyed by
+     * PatchSet.Id only for convenience.
      */
     private final ListMultimap<PatchSet.Id, ChangeUpdate> distinctUpdates;