WebKit export tool does not add wpt-pr-bot as a reviewer (but leaves a comment)
I've exported a few WebKit changes to the WPT repository using the appropriate export tool (Tools/Scripts/export-w3c-test-changes) and the result has been that wpt-pr-bot leaves the "This patch has been exported from WebKit; it will be approved automatically once the downstream patch is r+." comment but is not added as a reviewer leaving the PR with no assigned reviewer. Here's the most recent example: https://github.com/web-platform-tests/wpt/pull/50756.
Compare: https://github.com/web-platform-tests/wpt/pull/50755
Maybe this is just another way in which https://github.com/web-platform-tests/wpt-pr-bot/issues/164 fails? I'm not sure I totally understand the code-flow here.
Oh, your WebKit bug is still open, so the one situation that applies to WebKit GitHub PRs doesn't apply, therefore we don't conclude it has been reviewed yet:
https://github.com/web-platform-tests/wpt-pr-bot/blob/f03de165700a8dcb8ab47b0a15c8c0be9f083fe2/lib/metadata/webkit.js#L43-L47
I agree the state of the WPT PR could be clearer in this case, for example adding itself as a reviewer anyway.
See: https://github.com/web-platform-tests/wpt-pr-bot/blob/f03de165700a8dcb8ab47b0a15c8c0be9f083fe2/lib/comment.js#L44-L46
I could be wrong, and in fact given all of the above I most likely am, but I've only noticed this recently and I've always used Tools/Scripts/export-w3c-test-changes after creating a WebKit PR, ie. when the bugzilla bug is very much open.