As already explained, no they didn't!
In the future, if you want to find out why any edits are rejected, there is a section in your profile under Activity ->→ all actions ->→ suggestions.
In this case:
suggested rejected edit on New to installing Ubuntu
Click on rejected edit, not the title:
Rejected 12 hours ago:
Community♦ reviewed this 12 hours ago: Reject
This edit conflicted with a subsequent edit.
It was auto-rejected by the system user Community♦, because a different edit was submitted at the same time by another user. Bad luck!
