[Bug c++/63217] template conversion operator returning const reference not used for conversion in some cases

[vz at quantitativesystems dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63217

--- Comment #3 from Edward <vz at quantitativesystems dot com> ---
Perhaps https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79035 is related