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worldedit-core/src/main/java/com/sk89q/worldedit/internal/command/CommandUtil.java

@@ -227,8 +227,7 @@ private static Substring onlyOnLastQuotedWord(Substring lastArg, Substring sugge
             return suggestion;
         }
         String substr = suggestion.getSubstring();
-        // Ignore if suggestion ends with a " ", since that signals the end of
-        // the completed command.
+        // Check if there is a space inside the substring, and suggest starting from there instead.
         int sp = substr.trim().lastIndexOf(' ');
         if (sp < 0) {
             return suggestion;