SingleStat Value Mappings : "range to text" with décimals - Bug or Not?

Hello, I have a problem with the mapping, I have to use decimals it does not seem to work :

The value from request is 0.497 and my mapping is :

It should display “RPCOL” and it will show me “RPCOL ?”

Where is the problem ?

I tried with a comma, and the problem remains the same !


Workaround :
multiply by 10 the value retrieved by the query :
… * 10 as responstime
And do the same for “Thresholds” :
And same for “range to text” of “Value Mappings”
1 to 250
0 to 0
251 to 10000

But Bug or not bug !?