Bug report

When called directly, a sprintf() with float modifier is correctly considerd as numeric-string.
However, when called indirectly (sorry I can't find the correct word to describe it), looks like infered type is lost and we get non-empty-string instead

Code snippet that reproduces the problem

https://phpstan.org/r/546a013a-1028-41d6-9256-2528c6123498

Expected output

Both calls should yield the same result

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