https://issues.dlang.org/show_bug.cgi?id=15586
--- Comment #6 from thomas.bock...@gmail.com --- I may have reduced this one too far: https://github.com/D-Programming-Language/phobos/pull/3943#issuecomment-173381348 Arguably, the real bug is that certain other functions in Phobos call `toUTF8()` without verifying that the input they are supplying satisfies the contract. This will be a bit more work to fix, though. --
