Note – by “the entities” I meant of course “the   entities” (I didn’t know whether the forum will escape the entities or not…)

tony said:Thanks, I will corect this Regards Tony

seems this bug not fixed yet?

In $.unformat(), if unformatFunc is undefined and there's no formatter in the colmodel, then it ends up returning (line 419 of jquery.fmatter.js):

cnt===true ? $(cellval).text() : $(cellval).html();

I'm not sure what cnt means (though it will be false when coming from getRowData), but in any case there's no special handling (as in htmlDecode) to convert ' ' to ''.