improve SCOPE_IDENTITY docs

h2/src/docsrc/help/help.csv

@@ -3922,7 +3922,8 @@ CALL SCHEMA()
 "Functions (System)","SCOPE_IDENTITY","
 SCOPE_IDENTITY()
 ","
-Returns the last inserted identity value for this session for the current scope.
+Returns the last inserted identity value for this session for the current scope
+(ie. the current statement)
 Changes within triggers and Java functions are ignored. See also IDENTITY().
 This method returns a long.
 ","