https://issues.dlang.org/show_bug.cgi?id=14541
--- Comment #3 from github-bugzi...@puremagic.com --- Commits pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/1112eec29eef531663de289f17800ad4a10fee50 fix Issue 14541 - "duplicate COMDAT" linker error with the template forward reference in Tuple.opAssign The "error reproduction instantiation" might succeed to finish semantic analysis by the forward reference resolution. When it happens, the cached error instance needs to be overridden by the succeeded instance. https://github.com/D-Programming-Language/dmd/commit/0b0d37363727385299c76a52c8ddb5c9db47afd8 Merge pull request #4814 from 9rnsr/fix14541 Issue 14541 - "duplicate COMDAT" linker error with the template forward reference in Tuple.opAssign --