[Bug libstdc++/108118] New: std::weak_ptr lacks a self-usurp check on move

[b.stanimirov at abv dot bg via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108118

            Bug ID: 108118
           Summary: std::weak_ptr lacks a self-usurp check on move
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: b.stanimirov at abv dot bg
  Target Milestone: ---

If one somehow move-assigns a weak pointer to itself, it gets destroyed.

Demo: https://godbolt.org/z/eWdhYMhYe