Penfold Park is already drawn on the map as an area, so it's not necessary to separately add it as a point.

Hi, this changeset caused several issues with rendering and metadata (you removed the information that indicates that the northbound railway track is on a bridge). Please be more careful with your edits and don't ignore the warnings in iD.

Done.

I've reverted part of this changeset to fix an area which was split into four.

(The bridges are not physically connected at any point, despite being very close together.)

This is indeed drawn incorrectly; this is actually two structures, one built in ~1988 and the other built in 2013 during the widening of Tolo Highway north of Yuen Chau Tsai. The northbound bridge is the newer one.

I have already reported you to the Data Working Group (see the OSM wiki) so that they can decide whether it's necessary to revert and redact your changesets. Sorry for having to approach the issue in this way; it would have been better to avoid this situation entirely.