"No webmention targets" after first reply in a thread

[davidcelis]

I decided to open this separately from #1423 since there's probably a different issue happening here with threaded replies; in the linked issue, I was getting webmentions but without the target URL in the source HTML but, in this case, sometimes threaded replies stop targeting my original post and brid.gy doesn't know where to send them.

The most recent example happened with this post and a thread of replies on Mastodon. The linked reply came through as a webmention just fine but nothing else in that thread of replies was able to; I just see "No webmention targets" in brid.gy. Unfortunately, there don't appear to be logs either (I checked, but just got a "No log found!" page for the three that got listed:

• https://brid.gy/log?module=background&start_time=1710641889&key=agdicmlkLWd5cjMLEghSZXNwb25zZSIldGFnOnhveG8uem9uZSwyMDEzOjExMjEwODU4MjQ4OTA4OTk4OQw
• https://brid.gy/log?module=background&start_time=1710641889&key=agdicmlkLWd5cjMLEghSZXNwb25zZSIldGFnOnhveG8uem9uZSwyMDEzOjExMjEwODU3NzI2OTA3NTg1Ngw
• https://brid.gy/log?module=background&start_time=1710641889&key=agdicmlkLWd5cjMLEghSZXNwb25zZSIldGFnOnhveG8uem9uZSwyMDEzOjExMjEwODU3ODMzOTg2NTQ4NQw

I tried re-sending them, but brid.gy ended up trying to send them as webmentions to the other person in the conversation (example log)

Based on what I see in brid.gy, it looks like my first reply in this thread wasn't caught by brid.gy and I'm wondering if that's at play here, causing everything else to be disconnected and not deliverable to me? https://xoxo.zone/@davidcelis/112108570378508887