[Bug] If/Else treeshaking with object declared as const

[kosheeta]

Hey! I'm using a library, where in one file declared this:

And the second file has this usage:

But snowpack doing a treeshake (even if I turn it off in 'config.optimize.treeshake'!) and I'm getting this:

This produces an error in other class method. How to fix it? Maybe this is a bug? Thank you!

P. S. All works properly with react-scripts (webpack)

[kosheeta]

Any suggestions?