The formatting of your commit and diff summary are incorrect. To fix the commit do the following:

git commit --amend

And then ensure that the first line is just Update clojure-tools to 1.10.3.1040, not Summary: Bump the version to 1.10.3.1040. Also add a newline after Summary: and change the summary to a link to the release notes so that it looks like this (you may also choose to summarize the release notes of the versions between what you are updating from and what you are updating to):

Update clojure-tools to 1.10.3.1040

Summary:
Release notes available [here](https://clojure.org/releases/tools#v1.10.3.1040)

Test Plan:
- Built and installed locally

etc

And then once that is done save and then do arc diff. This will ask you what you changed, you can just put something like -Fixed commit message. You will also need to come back here and edit the title and description of this diff to match the commit message.