performing two identical actions in sequence produces different results

[xenon615]

Discovered today

<?php
$c1 = get_terms(['taxonomy' => 'product_cat']);
$c2 = get_terms(['taxonomy' => 'product_cat']);

$c1 not equal $c2 ($c2 unlike the $c1 contains empty terms)

[SergeyBiryukov]

Hi there, welcome to WordPress Trac! Thanks for the ticket.

This appears to be the same underlying issue as in #55837 and #55887, could you test and confirm?