[libcxx-commits] [libcxx] [libc++] Do not call `reserve` in flat containers if underlying container is user defined (PR #140379)

[A. Jiang via libcxx-commits]

frederick-vs-ja wrote:

> @Michael137 We've been seeing the LLDB tests that we run as part of libc++'s bootstrapping build fail for a few days (~5 days roughly). This is an example error: https://github.com/llvm/llvm-project/actions/runs/15086636371/job/42430861883?pr=140379. Does this ring a bell? @philnik777 tried reproducing locally (outside of the Docker image) and couldn't reproduce. Have you seen this kind of error in your CI setup before?

I'm attempting to fix this now.

https://github.com/llvm/llvm-project/pull/140379