Why xcode 4.2 location simulation does not allow to enter float values for latitude and longitude?

After successful installation of Xcode 4.2 on Snow Leopard, I tried to play with simulator - to play with location simulation. Tried entering custom location values with some float values for latitude (54.913743) an开发者_开发知识库d longitude (23.939154), but the values were truncated when I reopened custom location dialog box.

I was unable to get locationManager:didEnterRegion: called back when simulated using float values. Only worked using decimal (54, 23) values. Does this mean that location simulation works only when simulating location using decimal values?

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What locale are you using?.. It works perfectly for me when I use "48,2081743" and "16,3738189" because commas are the standard decimal separators in german..