https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67491 Bug 67491 depends on bug 67901, which changed state.
Bug 67901 Summary: [concepts] overloading bug when considered more specialized vs more constrained https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67901 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED