extents vs _extents

[prlw1]

When including linalg I see the following error:

In file included from /usr/src/local/stdBLAS/include/experimental/linalg:50,
                 from blas.cc:7:
/usr/src/local/stdBLAS/include/experimental/__p1673_bits/layout_blas_general.hpp: In member function 'constexpr Kokkos::Experimental::__p1673_version_0::linalg::__layout_blas_general_impl::__layout_blas_impl<BaseLayout, StaticLDA>& Kokkos::Experimental::__p1673_version_0::linalg::__layout_blas_general_impl::__layout_blas_impl<BaseLayout, StaticLDA>::operator=(const Kokkos::Experimental::__p1673_version_0::linalg::__layout_blas_general_impl::__layout_blas_impl<OtherExtents, OtherLDA>&)':
/usr/src/local/stdBLAS/include/experimental/__p1673_bits/layout_blas_general.hpp:133:11: error: 'class Kokkos::Experimental::__p1673_version_0::linalg::__layout_blas_general_impl::__layout_blas_impl<BaseLayout, StaticLDA>' has no member named '_extents'; did you mean 'extents'? [-Wtemplate-body]
  133 |     this->_extents = other.extents();
      |           ^~~~~~~~
      |           extents

Just in case, I commented out #define LINALG_ENABLE_BLAS in __p1673_bits/linalg_config.h, but no change...
(This is with HEAD mdspan and stdBLAS)