https://gcc.gnu.org/bugzilla/show_bug.cgi?id=37336 Bug 37336 depends on bug 67444, which changed state.
Bug 67444 Summary: [F03] RHS in assignment of polymorphic types not finalized https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67444 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED