fixup! Forgot the case where __cached_properties__ doesn't exist.
fixup! Forgot the case where __cached_properties__ doesn't exist.

frewsxcv/wpt-tools,vivliostyle/wpt-tools,kaixinjxq/wpt-tools,vivliostyle/wpt-tools,frewsxcv/wpt-tools,frewsxcv/wpt-tools,vivliostyle/wpt-tools,kaixinjxq/wpt-tools,UprootStaging/wpt-tools,wpt-on-tv-tf/wpt-tools,UprootStaging/wpt-tools,UprootStaging/wpt-tools,wpt-on-tv-tf/wpt-tools,wpt-on-tv-tf/wpt-tools,kaixinjxq/wpt-tools