they should be constructed through the accessor (geometry(), quirks(), marginCollapse()) functions.
<rdar://problem/55403474>
Created attachment 378870 [details] Patch
Comment on attachment 378870 [details] Patch Clearing flags on attachment: 378870 Committed r249908: <https://trac.webkit.org/changeset/249908>
All reviewed patches have been landed. Closing bug.