https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68093
Hannes Hauswedell <h2+bugs at fsfe dot org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |h2+bugs at fsfe dot org --- Comment #2 from Hannes Hauswedell <h2+bugs at fsfe dot org> --- Constraints on friend member functions seemed to be stripped entirely, therefore making two functions with only different constraints appear the same: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86978