Comment (by Erik Schnetter):

I don’t know. It might be that the compiler doesn’t know that we’re constructing a vector of size 3 and is worried that there might be uninitialized entries if we construct a larger vector.

If you want to apply the change, can you rename the new variable? Variable names starting with an underscore and then an upper case letter shouldn’t be used by an application. I usually append a 1 at the end instead.

--
Ticket URL: https://bitbucket.org/einsteintoolkit/tickets/issues/2818/failing-tests-with-gcc-14