Editing clips product-sku

[siao]

Good day,

I have product-sku like 1234-"WORD" (word)
when I add list of products product-sku looks good in data base and on the frontend.

But then I open edit interface for Product  I see product-sku like 1234-
all symbols from " have disappeared

in list -  http://gyazo.com/aad26caa3f80856a19b84b4c79fdad42
in editing http://gyazo.com/4dab419703f73f5b0b9ff0729332a263  (second text area)

this bad work for quotes like "


but for quotes like « it's work good   http://gyazo.com/df409b52f08684bf250ccd36a946ec34

Please, help
where I must edit in code for good working VM2?


(I use Joomla! 2.5.8 Stable [ Ember ] 8-November-2012 (Joomla Platform 11.4.0 Stable [ Brian Kernighan ] 03-Jan-2012 00:00 GMT )
php 5.3.14
apache2handler
Virtuemart 2.0.18a
Editor - JCE
)

thanks a lot

[siao]

anybody home?
could you help me?

does it link with char or varchar type product-sku in database?