IF margin-trim changes on a box (e.g. from block-start to none), this should cause the box to go through layout again.
<rdar://problem/107108810>
Pull request: https://github.com/WebKit/WebKit/pull/12219
Committed 262423@main (226684b758a0): <https://commits.webkit.org/262423@main> Reviewed commits have been landed. Closing PR #12219 and removing active labels.