зеркало из https://github.com/mozilla/gecko-dev.git
7d0494adc2
Sometimes, depending on how children were changed, children might be in the insertion list out of order; e.g. [child2, child1]. It's also possible that an earlier child (child1 in the above example) is being moved out of another container. When processing the earlier insertion (child2), we'll determine we need to move it within its parent and will fetch its new previous sibling so we can move it into the right place. However, in this case, the new previous sibling (child1) will be in the wrong container. We can't move in that case; the new previous sibling's index in parent will obviously be wrong, since it's relative to the wrong container. Therefore, we just skip the move. Since the previous sibling (child1) is later in the insertion list, the ordering will be corrected when we process that insertion. Differential Revision: https://phabricator.services.mozilla.com/D51037 --HG-- extra : moz-landing-system : lando |
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