Error apears on console when using ExtJs on WebKit

[1raupp]

ERROR: !(value > std::numeric_limits<int>::min() && value < std::numeric_limits<int>::max())
platform/LayoutUnit.h(197) : void WebCore::LayoutUnit::setRawValue(long long int).

This error occurs when a i use a layout border on a ExtJs Panel, with resizable property on;
The error don't break/crash the application.

If i can help with more information, please ask.

Att,
Raupp