possible bug in tr:inputListOfValues

I've found that tr:inputListOfValues doesn't handle with
decimal 
separator defined in trinidad-config.xml, but only in case
of receving 
value from dialog. For example:

I have defined "," for decimal-separator. Value of
"7.5" is correctly 
displayed in tr:inputListOfValues after showing the page,
but after 
getting new value from dialog (for example
"5.4327") the value displayed 
is "5.4327" instead of "5,4327" what is
completely wrong interpreted 
from my app as value "54327", because i have
"." as thousand separator. 
The work around is to use tr:inputText and tr:commandButton,
but still 
it is a little bit dangerous bug. I've tried to write own 
returnListener, but no luck.