2.9.0.1 Scala REPL gets messed up when run within "M-x term" [emacs 23.2.93.1]

[OP]

Please let me know if there is any other info needed.. i have described the problem in reproduction steps below.

Using REPL history messes up displayed content within REPL.

0a. Launch emacs and then start 'term' with the "EMACS" env-var unset:

> Emacs -Q
>  (M-x term RET RET)
> $ unset EMACS

0b. launch scala from within this terminal buffer

> $ scala <RET>

1. starting state/creating history - adding 2 entries to command-history: <"abc"> and <10>

scala> "abc"

res6: java.lang.String = abc

scala> 10

res7: Int = 10

2. hit 'up' or CTRL-P once - most recent entry is pulled from history. No problem!

scala> 10

3a. hit 'up' once more - next-recent is appended to currently displayed contents.. Problem!

> scala> 10"abc"

3b. hit ENTER

scala> 10"abc"

res8: java.lang.String = abc

The issue in 3b repeats for every 'up' or subsequent 'down'.. appending more and more entries.

(scala/repl though treats the input correctly internally.. see 3b - here it correctly accepts "abc", not the concatenation of 10 and "abc" that is displayed)

Tab-completion does work fine.

 I have tried running the scala interpreter from within a 'term' session of an "emacs -Q" instance with the same results.

 Also, this works fine within Terminal.app: its just that I have emacs/term configured to avoid a lot of keyboard-relate fatigue (so I would be glad for any help in getting 2.9 to work like this)