Mergify doesn't merge for commits from an app

Hello. I created an app to push PR's to my repos and I'm trying to merge the PR's automatically with mergify.

First, I set up a mergify rule to merge when the author is mxr-base-sync[bot]: https://github.com/mxr/dotfiles/blob/b523380a1353072c599f4f559922332ac04345a1/.github/mergify.yml#L17-L22

Then, my workflow opened https://github.com/mxr/dotfiles/pull/70 with a commit attributed to mxr-base-sync[bot]:

$ git show 02e2d72938debbbbb3444747c59f43fbaf17823d | head -n2
commit 02e2d72938debbbbb3444747c59f43fbaf17823d
Author: mxr-base-sync[bot] <306625798+mxr-base-sync[bot]@users.noreply.github.com>

However mergify didn't merge the PR. First, the mergify check on the PR says that none of the rules are applicable and author=mxr-base-sync[bot] didn't match. Also, when I check the activity logs, there are no events:

I thought my rule was misconfigured. But when I type @Mergifyio refresh then I see an entry in the activity log and the PR automerges. I believe the PR should merge without needing to do that. An example of such merge-on-refresh is https://github.com/mxr/dotfiles/pull/69 - Mergify doesn't match any rules initially but only matches on refresh. So I feel my rules are correct and also the rules for author=pre-commit-ci[bot] and author=renovate[bot] match with no issues (see github.com/mxr/sync-typing-deps for examples of both of those bots merging automatically).

Could you take a look please? Thank you

Start with the linked Mergify configuration and PRs 70 and 69, then compare the initial check and activity log with the result after @Mergifyio refresh. Confirm that the app-authored commit event is evaluated against author=mxr-base-sync[bot] without manual refresh, while preserving matching for the pre-commit-ci and renovate examples.