This is part of removing the tear off objects of the SVG properties.
Created attachment 365900 [details]
Created attachment 365981 [details]
Comment on attachment 365981 [details]
Clearing flags on attachment: 365981
Committed r243515: <https://trac.webkit.org/changeset/243515>
All reviewed patches have been landed. Closing bug.
It looks like https://trac.webkit.org/changeset/243515 is causing windows 10 build failures.
Please let me know if it's a quick fix or we can roll out if you need more time?
Windows build fix: <https://trac.webkit.org/changeset/243532>