[param] object's @steps attribute not allowing floating-point steps sizes in JUCE UI

Here's some strange behaviour:

I have 3 [param] objects each with a range of 0-100 with different values for the @steps attribute:

After compiling this as a VST, using the JUCE UI I'm only able to dial in values that are integers. I would expect step sizes of 0.5 for @steps 201 and 0.25 for @steps 401. Curiously this is possible using the default Plugin UI of the host:

Tested in Reaper and Bitwig. It's the same for [param] and [param~]. Looks like a Bug to me, but what confuses me is, that when e.g. I use @steps 151, then I do get floating point values in the JUCE UI.