https://issues.dlang.org/show_bug.cgi?id=15960
--- Comment #2 from [email protected] --- Commits pushed to stable at https://github.com/dlang/phobos https://github.com/dlang/phobos/commit/501a1d5f41ec980b2b8c67b7a1fc31b6e65991a9 fix issue 15960 - deprecate setUnion in favor of merge https://github.com/dlang/phobos/commit/5c5dda3dfba0cc859864072b6247f4097b57dd3a Merge pull request #4249 from wilzbach/fix_15960 --
